20215653927

素因数分解:

$3^1\times 7^1\times {\mathrm{617}}^1\times {\mathrm{1560211}}^1$

素因数の和:1560838

約数の個数: 16

約数和(自身を含む): 30854752512

約数和(自身を除く): 10639098585

約数列:

[1, 3, 7, 21, 617, 1851, 4319, 12957, 1560211, 4680633, 10921477, 32764431, 962650187, 2887950561, 6738551309, 20215653927]

約数ペア:

[(1, 20215653927), (3, 6738551309), (7, 2887950561), (21, 962650187), (617, 32764431), (1851, 10921477), (4319, 4680633), (12957, 1560211)]