21179313

素因数分解:

$3^4\times {\mathrm{373}}^1\times {\mathrm{701}}^1$

素因数の和:1086

約数の個数: 20

約数和(自身を含む): 31768308

約数和(自身を除く): 10588995

約数列:

[1, 3, 9, 27, 81, 373, 701, 1119, 2103, 3357, 6309, 10071, 18927, 30213, 56781, 261473, 784419, 2353257, 7059771, 21179313]

約数ペア:

[(1, 21179313), (3, 7059771), (9, 2353257), (27, 784419), (81, 261473), (373, 56781), (701, 30213), (1119, 18927), (2103, 10071), (3357, 6309)]