19814674

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{8263}}^1$

素因数の和:8385

約数の個数: 16

約数和(自身を含む): 32725440

約数和(自身を除く): 12910766

約数列:

[1, 2, 11, 22, 109, 218, 1199, 2398, 8263, 16526, 90893, 181786, 900667, 1801334, 9907337, 19814674]

約数ペア:

[(1, 19814674), (2, 9907337), (11, 1801334), (22, 900667), (109, 181786), (218, 90893), (1199, 16526), (2398, 8263)]