21715317

素因数分解:

$3^3\times {\mathrm{13}}^2\times {\mathrm{4759}}^1$

素因数の和:4794

約数の個数: 24

約数和(自身を含む): 34843200

約数和(自身を除く): 13127883

約数列:

[1, 3, 9, 13, 27, 39, 117, 169, 351, 507, 1521, 4563, 4759, 14277, 42831, 61867, 128493, 185601, 556803, 804271, 1670409, 2412813, 7238439, 21715317]

約数ペア:

[(1, 21715317), (3, 7238439), (9, 2412813), (13, 1670409), (27, 804271), (39, 556803), (117, 185601), (169, 128493), (351, 61867), (507, 42831), (1521, 14277), (4563, 4759)]