21601017

素因数分解:

$3^2\times {\mathrm{31}}^1\times {\mathrm{139}}^1\times {\mathrm{557}}^1$

素因数の和:733

約数の個数: 24

約数和(自身を含む): 32497920

約数和(自身を除く): 10896903

約数列:

[1, 3, 9, 31, 93, 139, 279, 417, 557, 1251, 1671, 4309, 5013, 12927, 17267, 38781, 51801, 77423, 155403, 232269, 696807, 2400113, 7200339, 21601017]

約数ペア:

[(1, 21601017), (3, 7200339), (9, 2400113), (31, 696807), (93, 232269), (139, 155403), (279, 77423), (417, 51801), (557, 38781), (1251, 17267), (1671, 12927), (4309, 5013)]