21204056

素因数分解:

$2^3\times {\mathrm{191}}^1\times {\mathrm{13877}}^1$

素因数の和:14074

約数の個数: 16

約数和(自身を含む): 39968640

約数和(自身を除く): 18764584

約数列:

[1, 2, 4, 8, 191, 382, 764, 1528, 13877, 27754, 55508, 111016, 2650507, 5301014, 10602028, 21204056]

約数ペア:

[(1, 21204056), (2, 10602028), (4, 5301014), (8, 2650507), (191, 111016), (382, 55508), (764, 27754), (1528, 13877)]