20383251

素因数分解:

$3^1\times 7^1\times {\mathrm{311}}^1\times {\mathrm{3121}}^1$

素因数の和:3442

約数の個数: 16

約数和(自身を含む): 31170048

約数和(自身を除く): 10786797

約数列:

[1, 3, 7, 21, 311, 933, 2177, 3121, 6531, 9363, 21847, 65541, 970631, 2911893, 6794417, 20383251]

約数ペア:

[(1, 20383251), (3, 6794417), (7, 2911893), (21, 970631), (311, 65541), (933, 21847), (2177, 9363), (3121, 6531)]