20013518

素因数分解:

$2^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{13879}}^1$

素因数の和:13991

約数の個数: 16

約数和(自身を含む): 34644480

約数和(自身を除く): 14630962

約数列:

[1, 2, 7, 14, 103, 206, 721, 1442, 13879, 27758, 97153, 194306, 1429537, 2859074, 10006759, 20013518]

約数ペア:

[(1, 20013518), (2, 10006759), (7, 2859074), (14, 1429537), (103, 194306), (206, 97153), (721, 27758), (1442, 13879)]