21597210

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{317}}^1\times {\mathrm{757}}^1$

素因数の和:1087

約数の個数: 48

約数和(自身を含む): 56404296

約数和(自身を除く): 34807086

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 317, 634, 757, 951, 1514, 1585, 1902, 2271, 2853, 3170, 3785, 4542, 4755, 5706, 6813, 7570, 9510, 11355, 13626, 14265, 22710, 28530, 34065, 68130, 239969, 479938, 719907, 1199845, 1439814, 2159721, 2399690, 3599535, 4319442, 7199070, 10798605, 21597210]

約数ペア:

[(1, 21597210), (2, 10798605), (3, 7199070), (5, 4319442), (6, 3599535), (9, 2399690), (10, 2159721), (15, 1439814), (18, 1199845), (30, 719907), (45, 479938), (90, 239969), (317, 68130), (634, 34065), (757, 28530), (951, 22710), (1514, 14265), (1585, 13626), (1902, 11355), (2271, 9510), (2853, 7570), (3170, 6813), (3785, 5706), (4542, 4755)]