21553816

素因数分解:

$2^3\times {\mathrm{163}}^1\times {\mathrm{16529}}^1$

素因数の和:16698

約数の個数: 16

約数和(自身を含む): 40663800

約数和(自身を除く): 19109984

約数列:

[1, 2, 4, 8, 163, 326, 652, 1304, 16529, 33058, 66116, 132232, 2694227, 5388454, 10776908, 21553816]

約数ペア:

[(1, 21553816), (2, 10776908), (4, 5388454), (8, 2694227), (163, 132232), (326, 66116), (652, 33058), (1304, 16529)]