21250020

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{2927}}^1$

素因数の和:2961

約数の個数: 72

約数和(自身を含む): 65423232

約数和(自身を除く): 44173212

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 30, 33, 44, 55, 60, 66, 110, 121, 132, 165, 220, 242, 330, 363, 484, 605, 660, 726, 1210, 1452, 1815, 2420, 2927, 3630, 5854, 7260, 8781, 11708, 14635, 17562, 29270, 32197, 35124, 43905, 58540, 64394, 87810, 96591, 128788, 160985, 175620, 193182, 321970, 354167, 386364, 482955, 643940, 708334, 965910, 1062501, 1416668, 1770835, 1931820, 2125002, 3541670, 4250004, 5312505, 7083340, 10625010, 21250020]

約数ペア:

[(1, 21250020), (2, 10625010), (3, 7083340), (4, 5312505), (5, 4250004), (6, 3541670), (10, 2125002), (11, 1931820), (12, 1770835), (15, 1416668), (20, 1062501), (22, 965910), (30, 708334), (33, 643940), (44, 482955), (55, 386364), (60, 354167), (66, 321970), (110, 193182), (121, 175620), (132, 160985), (165, 128788), (220, 96591), (242, 87810), (330, 64394), (363, 58540), (484, 43905), (605, 35124), (660, 32197), (726, 29270), (1210, 17562), (1452, 14635), (1815, 11708), (2420, 8781), (2927, 7260), (3630, 5854)]