21059220

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1$

素因数の和:87

約数の個数: 288

約数和(自身を含む): 80438400

約数和(自身を除く): 59379180

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 13, 14, 15, 19, 20, 21, 26, 28, 29, 30, 35, 38, 39, 42, 49, 52, 57, 58, 60, 65, 70, 76, 78, 84, 87, 91, 95, 98, 105, 114, 116, 130, 133, 140, 145, 147, 156, 174, 182, 190, 195, 196, 203, 210, 228, 245, 247, 260, 266, 273, 285, 290, 294, 348, 364, 377, 380, 390, 399, 406, 420, 435, 455, 490, 494, 532, 546, 551, 570, 580, 588, 609, 637, 665, 735, 741, 754, 780, 798, 812, 870, 910, 931, 980, 988, 1015, 1092, 1102, 1131, 1140, 1218, 1235, 1274, 1330, 1365, 1421, 1470, 1482, 1508, 1596, 1653, 1729, 1740, 1820, 1862, 1885, 1911, 1995, 2030, 2204, 2262, 2436, 2470, 2548, 2639, 2660, 2730, 2755, 2793, 2842, 2940, 2964, 3045, 3185, 3306, 3458, 3705, 3724, 3770, 3822, 3857, 3990, 4060, 4263, 4524, 4655, 4940, 5187, 5278, 5460, 5510, 5586, 5655, 5684, 6090, 6370, 6612, 6916, 7105, 7163, 7410, 7540, 7644, 7714, 7917, 7980, 8265, 8526, 8645, 9310, 9555, 10374, 10556, 11020, 11172, 11310, 11571, 12103, 12180, 12740, 13195, 13965, 14210, 14326, 14820, 15428, 15834, 16530, 17052, 17290, 18473, 18620, 19110, 19285, 20748, 21315, 21489, 22620, 23142, 24206, 25935, 26390, 26999, 27930, 28420, 28652, 31668, 33060, 34580, 35815, 36309, 36946, 38220, 38570, 39585, 42630, 42978, 46284, 48412, 50141, 51870, 52780, 53998, 55419, 55860, 57855, 60515, 71630, 72618, 73892, 77140, 79170, 80997, 85260, 85956, 92365, 100282, 103740, 107445, 107996, 110838, 115710, 121030, 134995, 143260, 145236, 150423, 158340, 161994, 181545, 184730, 200564, 214890, 221676, 231420, 242060, 250705, 269990, 277095, 300846, 323988, 350987, 363090, 369460, 404985, 429780, 501410, 539980, 554190, 601692, 701974, 726180, 752115, 809970, 1002820, 1052961, 1108380, 1403948, 1504230, 1619940, 1754935, 2105922, 3008460, 3509870, 4211844, 5264805, 7019740, 10529610, 21059220]

約数ペア:

[(1, 21059220), (2, 10529610), (3, 7019740), (4, 5264805), (5, 4211844), (6, 3509870), (7, 3008460), (10, 2105922), (12, 1754935), (13, 1619940), (14, 1504230), (15, 1403948), (19, 1108380), (20, 1052961), (21, 1002820), (26, 809970), (28, 752115), (29, 726180), (30, 701974), (35, 601692), (38, 554190), (39, 539980), (42, 501410), (49, 429780), (52, 404985), (57, 369460), (58, 363090), (60, 350987), (65, 323988), (70, 300846), (76, 277095), (78, 269990), (84, 250705), (87, 242060), (91, 231420), (95, 221676), (98, 214890), (105, 200564), (114, 184730), (116, 181545), (130, 161994), (133, 158340), (140, 150423), (145, 145236), (147, 143260), (156, 134995), (174, 121030), (182, 115710), (190, 110838), (195, 107996), (196, 107445), (203, 103740), (210, 100282), (228, 92365), (245, 85956), (247, 85260), (260, 80997), (266, 79170), (273, 77140), (285, 73892), (290, 72618), (294, 71630), (348, 60515), (364, 57855), (377, 55860), (380, 55419), (390, 53998), (399, 52780), (406, 51870), (420, 50141), (435, 48412), (455, 46284), (490, 42978), (494, 42630), (532, 39585), (546, 38570), (551, 38220), (570, 36946), (580, 36309), (588, 35815), (609, 34580), (637, 33060), (665, 31668), (735, 28652), (741, 28420), (754, 27930), (780, 26999), (798, 26390), (812, 25935), (870, 24206), (910, 23142), (931, 22620), (980, 21489), (988, 21315), (1015, 20748), (1092, 19285), (1102, 19110), (1131, 18620), (1140, 18473), (1218, 17290), (1235, 17052), (1274, 16530), (1330, 15834), (1365, 15428), (1421, 14820), (1470, 14326), (1482, 14210), (1508, 13965), (1596, 13195), (1653, 12740), (1729, 12180), (1740, 12103), (1820, 11571), (1862, 11310), (1885, 11172), (1911, 11020), (1995, 10556), (2030, 10374), (2204, 9555), (2262, 9310), (2436, 8645), (2470, 8526), (2548, 8265), (2639, 7980), (2660, 7917), (2730, 7714), (2755, 7644), (2793, 7540), (2842, 7410), (2940, 7163), (2964, 7105), (3045, 6916), (3185, 6612), (3306, 6370), (3458, 6090), (3705, 5684), (3724, 5655), (3770, 5586), (3822, 5510), (3857, 5460), (3990, 5278), (4060, 5187), (4263, 4940), (4524, 4655)]