18969962

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{21031}}^1$

素因数の和:21085

約数の個数: 16

約数和(自身を含む): 31800384

約数和(自身を除く): 12830422

約数列:

[1, 2, 11, 22, 41, 82, 451, 902, 21031, 42062, 231341, 462682, 862271, 1724542, 9484981, 18969962]

約数ペア:

[(1, 18969962), (2, 9484981), (11, 1724542), (22, 862271), (41, 462682), (82, 231341), (451, 42062), (902, 21031)]