20821288

素因数分解:

$2^3\times {\mathrm{43}}^1\times {\mathrm{60527}}^1$

素因数の和:60576

約数の個数: 16

約数和(自身を含む): 39948480

約数和(自身を除く): 19127192

約数列:

[1, 2, 4, 8, 43, 86, 172, 344, 60527, 121054, 242108, 484216, 2602661, 5205322, 10410644, 20821288]

約数ペア:

[(1, 20821288), (2, 10410644), (4, 5205322), (8, 2602661), (43, 484216), (86, 242108), (172, 121054), (344, 60527)]