21340809740

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{107}}^1\times {\mathrm{163481}}^1$

素因数の和:163658

約数の個数: 48

約数和(自身を含む): 45976369824

約数和(自身を除く): 24635560084

約数列:

[1, 2, 4, 5, 10, 20, 61, 107, 122, 214, 244, 305, 428, 535, 610, 1070, 1220, 2140, 6527, 13054, 26108, 32635, 65270, 130540, 163481, 326962, 653924, 817405, 1634810, 3269620, 9972341, 17492467, 19944682, 34984934, 39889364, 49861705, 69969868, 87462335, 99723410, 174924670, 199446820, 349849340, 1067040487, 2134080974, 4268161948, 5335202435, 10670404870, 21340809740]

約数ペア:

[(1, 21340809740), (2, 10670404870), (4, 5335202435), (5, 4268161948), (10, 2134080974), (20, 1067040487), (61, 349849340), (107, 199446820), (122, 174924670), (214, 99723410), (244, 87462335), (305, 69969868), (428, 49861705), (535, 39889364), (610, 34984934), (1070, 19944682), (1220, 17492467), (2140, 9972341), (6527, 3269620), (13054, 1634810), (26108, 817405), (32635, 653924), (65270, 326962), (130540, 163481)]