20640333

素因数分解:

$3^1\times 7^1\times {\mathrm{719}}^1\times {\mathrm{1367}}^1$

素因数の和:2096

約数の個数: 16

約数和(自身を含む): 31518720

約数和(自身を除く): 10878387

約数列:

[1, 3, 7, 21, 719, 1367, 2157, 4101, 5033, 9569, 15099, 28707, 982873, 2948619, 6880111, 20640333]

約数ペア:

[(1, 20640333), (3, 6880111), (7, 2948619), (21, 982873), (719, 28707), (1367, 15099), (2157, 9569), (4101, 5033)]