21402804

素因数分解:

$2^2\times 3^1\times {\mathrm{109}}^1\times {\mathrm{16363}}^1$

素因数の和:16479

約数の個数: 24

約数和(自身を含む): 50401120

約数和(自身を除く): 28998316

約数列:

[1, 2, 3, 4, 6, 12, 109, 218, 327, 436, 654, 1308, 16363, 32726, 49089, 65452, 98178, 196356, 1783567, 3567134, 5350701, 7134268, 10701402, 21402804]

約数ペア:

[(1, 21402804), (2, 10701402), (3, 7134268), (4, 5350701), (6, 3567134), (12, 1783567), (109, 196356), (218, 98178), (327, 65452), (436, 49089), (654, 32726), (1308, 16363)]