18391887

素因数分解:

$3^3\times {\mathrm{29}}^1\times {\mathrm{83}}^1\times {\mathrm{283}}^1$

素因数の和:404

約数の個数: 32

約数和(自身を含む): 28627200

約数和(自身を除く): 10235313

約数列:

[1, 3, 9, 27, 29, 83, 87, 249, 261, 283, 747, 783, 849, 2241, 2407, 2547, 7221, 7641, 8207, 21663, 23489, 24621, 64989, 70467, 73863, 211401, 221589, 634203, 681181, 2043543, 6130629, 18391887]

約数ペア:

[(1, 18391887), (3, 6130629), (9, 2043543), (27, 681181), (29, 634203), (83, 221589), (87, 211401), (249, 73863), (261, 70467), (283, 64989), (747, 24621), (783, 23489), (849, 21663), (2241, 8207), (2407, 7641), (2547, 7221)]