20210631

素因数分解:

$3^1\times 7^1\times {\mathrm{857}}^1\times {\mathrm{1123}}^1$

素因数の和:1990

約数の個数: 16

約数和(自身を含む): 30860544

約数和(自身を除く): 10649913

約数列:

[1, 3, 7, 21, 857, 1123, 2571, 3369, 5999, 7861, 17997, 23583, 962411, 2887233, 6736877, 20210631]

約数ペア:

[(1, 20210631), (3, 6736877), (7, 2887233), (21, 962411), (857, 23583), (1123, 17997), (2571, 7861), (3369, 5999)]