21725264

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{123439}}^1$

素因数の和:123458

約数の個数: 20

約数和(自身を含む): 45919680

約数和(自身を除く): 24194416

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 123439, 246878, 493756, 987512, 1357829, 1975024, 2715658, 5431316, 10862632, 21725264]

約数ペア:

[(1, 21725264), (2, 10862632), (4, 5431316), (8, 2715658), (11, 1975024), (16, 1357829), (22, 987512), (44, 493756), (88, 246878), (176, 123439)]