21965073

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{4111}}^1$

素因数の和:4264

約数の個数: 16

約数和(自身を含む): 31777536

約数和(自身を除く): 9812463

約数列:

[1, 3, 13, 39, 137, 411, 1781, 4111, 5343, 12333, 53443, 160329, 563207, 1689621, 7321691, 21965073]

約数ペア:

[(1, 21965073), (3, 7321691), (13, 1689621), (39, 563207), (137, 160329), (411, 53443), (1781, 12333), (4111, 5343)]