20941641

素因数分解:

$3^2\times 7^1\times {\mathrm{491}}^1\times {\mathrm{677}}^1$

素因数の和:1181

約数の個数: 24

約数和(自身を含む): 34691904

約数和(自身を除く): 13750263

約数列:

[1, 3, 7, 9, 21, 63, 491, 677, 1473, 2031, 3437, 4419, 4739, 6093, 10311, 14217, 30933, 42651, 332407, 997221, 2326849, 2991663, 6980547, 20941641]

約数ペア:

[(1, 20941641), (3, 6980547), (7, 2991663), (9, 2326849), (21, 997221), (63, 332407), (491, 42651), (677, 30933), (1473, 14217), (2031, 10311), (3437, 6093), (4419, 4739)]