18868886

素因数分解:

$2^1\times {\mathrm{61}}^1\times {\mathrm{211}}^1\times {\mathrm{733}}^1$

素因数の和:1007

約数の個数: 16

約数和(自身を含む): 28943088

約数和(自身を除く): 10074202

約数列:

[1, 2, 61, 122, 211, 422, 733, 1466, 12871, 25742, 44713, 89426, 154663, 309326, 9434443, 18868886]

約数ペア:

[(1, 18868886), (2, 9434443), (61, 309326), (122, 154663), (211, 89426), (422, 44713), (733, 25742), (1466, 12871)]