21601744

素因数分解:

$2^4\times {\mathrm{409}}^1\times {\mathrm{3301}}^1$

素因数の和:3718

約数の個数: 20

約数和(自身を含む): 41968420

約数和(自身を除く): 20366676

約数列:

[1, 2, 4, 8, 16, 409, 818, 1636, 3272, 3301, 6544, 6602, 13204, 26408, 52816, 1350109, 2700218, 5400436, 10800872, 21601744]

約数ペア:

[(1, 21601744), (2, 10800872), (4, 5400436), (8, 2700218), (16, 1350109), (409, 52816), (818, 26408), (1636, 13204), (3272, 6602), (3301, 6544)]