21407264

素因数分解:

$2^5\times {\mathrm{157}}^1\times {\mathrm{4261}}^1$

素因数の和:4428

約数の個数: 24

約数和(自身を含む): 42423948

約数和(自身を除く): 21016684

約数列:

[1, 2, 4, 8, 16, 32, 157, 314, 628, 1256, 2512, 4261, 5024, 8522, 17044, 34088, 68176, 136352, 668977, 1337954, 2675908, 5351816, 10703632, 21407264]

約数ペア:

[(1, 21407264), (2, 10703632), (4, 5351816), (8, 2675908), (16, 1337954), (32, 668977), (157, 136352), (314, 68176), (628, 34088), (1256, 17044), (2512, 8522), (4261, 5024)]