21455070

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{271}}^1$

素因数の和:330

約数の個数: 128

約数和(自身を含む): 65802240

約数和(自身を除く): 44347170

約数列:

[1, 2, 3, 5, 6, 7, 10, 13, 14, 15, 21, 26, 29, 30, 35, 39, 42, 58, 65, 70, 78, 87, 91, 105, 130, 145, 174, 182, 195, 203, 210, 271, 273, 290, 377, 390, 406, 435, 455, 542, 546, 609, 754, 813, 870, 910, 1015, 1131, 1218, 1355, 1365, 1626, 1885, 1897, 2030, 2262, 2639, 2710, 2730, 3045, 3523, 3770, 3794, 4065, 5278, 5655, 5691, 6090, 7046, 7859, 7917, 8130, 9485, 10569, 11310, 11382, 13195, 15718, 15834, 17615, 18970, 21138, 23577, 24661, 26390, 28455, 35230, 39295, 39585, 47154, 49322, 52845, 55013, 56910, 73983, 78590, 79170, 102167, 105690, 110026, 117885, 123305, 147966, 165039, 204334, 235770, 246610, 275065, 306501, 330078, 369915, 510835, 550130, 613002, 715169, 739830, 825195, 1021670, 1430338, 1532505, 1650390, 2145507, 3065010, 3575845, 4291014, 7151690, 10727535, 21455070]

約数ペア:

[(1, 21455070), (2, 10727535), (3, 7151690), (5, 4291014), (6, 3575845), (7, 3065010), (10, 2145507), (13, 1650390), (14, 1532505), (15, 1430338), (21, 1021670), (26, 825195), (29, 739830), (30, 715169), (35, 613002), (39, 550130), (42, 510835), (58, 369915), (65, 330078), (70, 306501), (78, 275065), (87, 246610), (91, 235770), (105, 204334), (130, 165039), (145, 147966), (174, 123305), (182, 117885), (195, 110026), (203, 105690), (210, 102167), (271, 79170), (273, 78590), (290, 73983), (377, 56910), (390, 55013), (406, 52845), (435, 49322), (455, 47154), (542, 39585), (546, 39295), (609, 35230), (754, 28455), (813, 26390), (870, 24661), (910, 23577), (1015, 21138), (1131, 18970), (1218, 17615), (1355, 15834), (1365, 15718), (1626, 13195), (1885, 11382), (1897, 11310), (2030, 10569), (2262, 9485), (2639, 8130), (2710, 7917), (2730, 7859), (3045, 7046), (3523, 6090), (3770, 5691), (3794, 5655), (4065, 5278)]