20851268

素因数分解:

$2^2\times {\mathrm{47}}^1\times {\mathrm{197}}^1\times {\mathrm{563}}^1$

素因数の和:811

約数の個数: 24

約数和(自身を含む): 37521792

約数和(自身を除く): 16670524

約数列:

[1, 2, 4, 47, 94, 188, 197, 394, 563, 788, 1126, 2252, 9259, 18518, 26461, 37036, 52922, 105844, 110911, 221822, 443644, 5212817, 10425634, 20851268]

約数ペア:

[(1, 20851268), (2, 10425634), (4, 5212817), (47, 443644), (94, 221822), (188, 110911), (197, 105844), (394, 52922), (563, 37036), (788, 26461), (1126, 18518), (2252, 9259)]