18916568

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{103}}^1\times {\mathrm{2087}}^1$

素因数の和:2207

約数の個数: 32

約数和(自身を含む): 39087360

約数和(自身を除く): 20170792

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 103, 206, 412, 824, 1133, 2087, 2266, 4174, 4532, 8348, 9064, 16696, 22957, 45914, 91828, 183656, 214961, 429922, 859844, 1719688, 2364571, 4729142, 9458284, 18916568]

約数ペア:

[(1, 18916568), (2, 9458284), (4, 4729142), (8, 2364571), (11, 1719688), (22, 859844), (44, 429922), (88, 214961), (103, 183656), (206, 91828), (412, 45914), (824, 22957), (1133, 16696), (2087, 9064), (2266, 8348), (4174, 4532)]