21197200312

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{155861767}}^1$

素因数の和:155861790

約数の個数: 16

約数和(自身を含む): 42082677360

約数和(自身を除く): 20885477048

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 155861767, 311723534, 623447068, 1246894136, 2649650039, 5299300078, 10598600156, 21197200312]

約数ペア:

[(1, 21197200312), (2, 10598600156), (4, 5299300078), (8, 2649650039), (17, 1246894136), (34, 623447068), (68, 311723534), (136, 155861767)]