21297364

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{157}}^1\times {\mathrm{3083}}^1$

素因数の和:3255

約数の個数: 24

約数和(自身を含む): 40930848

約数和(自身を除く): 19633484

約数列:

[1, 2, 4, 11, 22, 44, 157, 314, 628, 1727, 3083, 3454, 6166, 6908, 12332, 33913, 67826, 135652, 484031, 968062, 1936124, 5324341, 10648682, 21297364]

約数ペア:

[(1, 21297364), (2, 10648682), (4, 5324341), (11, 1936124), (22, 968062), (44, 484031), (157, 135652), (314, 67826), (628, 33913), (1727, 12332), (3083, 6908), (3454, 6166)]