20981351554

素因数分解:

$2^1\times {\mathrm{101}}^1\times {\mathrm{1601}}^1\times {\mathrm{64877}}^1$

素因数の和:66581

約数の個数: 16

約数和(自身を含む): 31803974136

約数和(自身を除く): 10822622582

約数列:

[1, 2, 101, 202, 1601, 3202, 64877, 129754, 161701, 323402, 6552577, 13105154, 103868077, 207736154, 10490675777, 20981351554]

約数ペア:

[(1, 20981351554), (2, 10490675777), (101, 207736154), (202, 103868077), (1601, 13105154), (3202, 6552577), (64877, 323402), (129754, 161701)]