21362428

素因数分解:

$2^2\times {\mathrm{73}}^1\times {\mathrm{149}}^1\times {\mathrm{491}}^1$

素因数の和:717

約数の個数: 24

約数和(自身を含む): 38228400

約数和(自身を除く): 16865972

約数列:

[1, 2, 4, 73, 146, 149, 292, 298, 491, 596, 982, 1964, 10877, 21754, 35843, 43508, 71686, 73159, 143372, 146318, 292636, 5340607, 10681214, 21362428]

約数ペア:

[(1, 21362428), (2, 10681214), (4, 5340607), (73, 292636), (146, 146318), (149, 143372), (292, 73159), (298, 71686), (491, 43508), (596, 35843), (982, 21754), (1964, 10877)]