21113313

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{28493}}^1$

素因数の和:28528

約数の個数: 16

約数和(自身を含む): 31913280

約数和(自身を除く): 10799967

約数列:

[1, 3, 13, 19, 39, 57, 247, 741, 28493, 85479, 370409, 541367, 1111227, 1624101, 7037771, 21113313]

約数ペア:

[(1, 21113313), (3, 7037771), (13, 1624101), (19, 1111227), (39, 541367), (57, 370409), (247, 85479), (741, 28493)]