20941430

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{1571}}^1$

素因数の和:1652

約数の個数: 32

約数和(自身を含む): 39840768

約数和(自身を除く): 18899338

約数列:

[1, 2, 5, 10, 31, 43, 62, 86, 155, 215, 310, 430, 1333, 1571, 2666, 3142, 6665, 7855, 13330, 15710, 48701, 67553, 97402, 135106, 243505, 337765, 487010, 675530, 2094143, 4188286, 10470715, 20941430]

約数ペア:

[(1, 20941430), (2, 10470715), (5, 4188286), (10, 2094143), (31, 675530), (43, 487010), (62, 337765), (86, 243505), (155, 135106), (215, 97402), (310, 67553), (430, 48701), (1333, 15710), (1571, 13330), (2666, 7855), (3142, 6665)]