21188936

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{155801}}^1$

素因数の和:155824

約数の個数: 16

約数和(自身を含む): 42066540

約数和(自身を除く): 20877604

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 155801, 311602, 623204, 1246408, 2648617, 5297234, 10594468, 21188936]

約数ペア:

[(1, 21188936), (2, 10594468), (4, 5297234), (8, 2648617), (17, 1246408), (34, 623204), (68, 311602), (136, 155801)]