21244642

素因数分解:

$2^1\times {\mathrm{41}}^1\times {\mathrm{509}}^2$

素因数の和:1061

約数の個数: 12

約数和(自身を含む): 32708466

約数和(自身を除く): 11463824

約数列:

[1, 2, 41, 82, 509, 1018, 20869, 41738, 259081, 518162, 10622321, 21244642]

約数ペア:

[(1, 21244642), (2, 10622321), (41, 518162), (82, 259081), (509, 41738), (1018, 20869)]