21566390

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{953}}^1$

素因数の和:1064

約数の個数: 32

約数和(自身を含む): 40663296

約数和(自身を除く): 19096906

約数列:

[1, 2, 5, 10, 31, 62, 73, 146, 155, 310, 365, 730, 953, 1906, 2263, 4526, 4765, 9530, 11315, 22630, 29543, 59086, 69569, 139138, 147715, 295430, 347845, 695690, 2156639, 4313278, 10783195, 21566390]

約数ペア:

[(1, 21566390), (2, 10783195), (5, 4313278), (10, 2156639), (31, 695690), (62, 347845), (73, 295430), (146, 147715), (155, 139138), (310, 69569), (365, 59086), (730, 29543), (953, 22630), (1906, 11315), (2263, 9530), (4526, 4765)]