18153956

素因数分解:

$2^2\times {\mathrm{103}}^1\times {\mathrm{139}}^1\times {\mathrm{317}}^1$

素因数の和:563

約数の個数: 24

約数和(自身を含む): 32410560

約数和(自身を除く): 14256604

約数列:

[1, 2, 4, 103, 139, 206, 278, 317, 412, 556, 634, 1268, 14317, 28634, 32651, 44063, 57268, 65302, 88126, 130604, 176252, 4538489, 9076978, 18153956]

約数ペア:

[(1, 18153956), (2, 9076978), (4, 4538489), (103, 176252), (139, 130604), (206, 88126), (278, 65302), (317, 57268), (412, 44063), (556, 32651), (634, 28634), (1268, 14317)]