21206216

素因数分解:

$2^3\times {\mathrm{263}}^1\times {\mathrm{10079}}^1$

素因数の和:10348

約数の個数: 16

約数和(自身を含む): 39916800

約数和(自身を除く): 18710584

約数列:

[1, 2, 4, 8, 263, 526, 1052, 2104, 10079, 20158, 40316, 80632, 2650777, 5301554, 10603108, 21206216]

約数ペア:

[(1, 21206216), (2, 10603108), (4, 5301554), (8, 2650777), (263, 80632), (526, 40316), (1052, 20158), (2104, 10079)]