21099644

素因数分解:

$2^2\times {\mathrm{137}}^1\times {\mathrm{139}}^1\times {\mathrm{277}}^1$

素因数の和:557

約数の個数: 24

約数和(自身を含む): 37596720

約数和(自身を除く): 16497076

約数列:

[1, 2, 4, 137, 139, 274, 277, 278, 548, 554, 556, 1108, 19043, 37949, 38086, 38503, 75898, 76172, 77006, 151796, 154012, 5274911, 10549822, 21099644]

約数ペア:

[(1, 21099644), (2, 10549822), (4, 5274911), (137, 154012), (139, 151796), (274, 77006), (277, 76172), (278, 75898), (548, 38503), (554, 38086), (556, 37949), (1108, 19043)]