21753480

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1$

素因数の和:116

約数の個数: 256

約数和(自身を含む): 82944000

約数和(自身を除く): 61190520

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 19, 20, 21, 24, 28, 29, 30, 35, 38, 40, 42, 47, 56, 57, 58, 60, 70, 76, 84, 87, 94, 95, 105, 114, 116, 120, 133, 140, 141, 145, 152, 168, 174, 188, 190, 203, 210, 228, 232, 235, 266, 280, 282, 285, 290, 329, 348, 376, 380, 399, 406, 420, 435, 456, 470, 532, 551, 564, 570, 580, 609, 658, 665, 696, 705, 760, 798, 812, 840, 870, 893, 940, 987, 1015, 1064, 1102, 1128, 1140, 1160, 1218, 1316, 1330, 1363, 1410, 1596, 1624, 1645, 1653, 1740, 1786, 1880, 1974, 1995, 2030, 2204, 2280, 2436, 2632, 2660, 2679, 2726, 2755, 2820, 3045, 3192, 3290, 3306, 3480, 3572, 3857, 3948, 3990, 4060, 4089, 4408, 4465, 4872, 4935, 5320, 5358, 5452, 5510, 5640, 6090, 6251, 6580, 6612, 6815, 7144, 7714, 7896, 7980, 8120, 8178, 8265, 8930, 9541, 9870, 10716, 10904, 11020, 11571, 12180, 12502, 13160, 13224, 13395, 13630, 15428, 15960, 16356, 16530, 17860, 18753, 19082, 19285, 19740, 20445, 21432, 22040, 23142, 24360, 25004, 25897, 26790, 27260, 28623, 30856, 31255, 32712, 33060, 35720, 37506, 38164, 38570, 39480, 40890, 46284, 47705, 50008, 51794, 53580, 54520, 57246, 57855, 62510, 66120, 75012, 76328, 77140, 77691, 81780, 92568, 93765, 95410, 103588, 107160, 114492, 115710, 125020, 129485, 143115, 150024, 154280, 155382, 163560, 181279, 187530, 190820, 207176, 228984, 231420, 250040, 258970, 286230, 310764, 362558, 375060, 381640, 388455, 462840, 517940, 543837, 572460, 621528, 725116, 750120, 776910, 906395, 1035880, 1087674, 1144920, 1450232, 1553820, 1812790, 2175348, 2719185, 3107640, 3625580, 4350696, 5438370, 7251160, 10876740, 21753480]

約数ペア:

[(1, 21753480), (2, 10876740), (3, 7251160), (4, 5438370), (5, 4350696), (6, 3625580), (7, 3107640), (8, 2719185), (10, 2175348), (12, 1812790), (14, 1553820), (15, 1450232), (19, 1144920), (20, 1087674), (21, 1035880), (24, 906395), (28, 776910), (29, 750120), (30, 725116), (35, 621528), (38, 572460), (40, 543837), (42, 517940), (47, 462840), (56, 388455), (57, 381640), (58, 375060), (60, 362558), (70, 310764), (76, 286230), (84, 258970), (87, 250040), (94, 231420), (95, 228984), (105, 207176), (114, 190820), (116, 187530), (120, 181279), (133, 163560), (140, 155382), (141, 154280), (145, 150024), (152, 143115), (168, 129485), (174, 125020), (188, 115710), (190, 114492), (203, 107160), (210, 103588), (228, 95410), (232, 93765), (235, 92568), (266, 81780), (280, 77691), (282, 77140), (285, 76328), (290, 75012), (329, 66120), (348, 62510), (376, 57855), (380, 57246), (399, 54520), (406, 53580), (420, 51794), (435, 50008), (456, 47705), (470, 46284), (532, 40890), (551, 39480), (564, 38570), (570, 38164), (580, 37506), (609, 35720), (658, 33060), (665, 32712), (696, 31255), (705, 30856), (760, 28623), (798, 27260), (812, 26790), (840, 25897), (870, 25004), (893, 24360), (940, 23142), (987, 22040), (1015, 21432), (1064, 20445), (1102, 19740), (1128, 19285), (1140, 19082), (1160, 18753), (1218, 17860), (1316, 16530), (1330, 16356), (1363, 15960), (1410, 15428), (1596, 13630), (1624, 13395), (1645, 13224), (1653, 13160), (1740, 12502), (1786, 12180), (1880, 11571), (1974, 11020), (1995, 10904), (2030, 10716), (2204, 9870), (2280, 9541), (2436, 8930), (2632, 8265), (2660, 8178), (2679, 8120), (2726, 7980), (2755, 7896), (2820, 7714), (3045, 7144), (3192, 6815), (3290, 6612), (3306, 6580), (3480, 6251), (3572, 6090), (3857, 5640), (3948, 5510), (3990, 5452), (4060, 5358), (4089, 5320), (4408, 4935), (4465, 4872)]