18230877

素因数分解:

$3^2\times 7^1\times {\mathrm{47}}^2\times {\mathrm{131}}^1$

素因数の和:238

約数の個数: 36

約数和(自身を含む): 30984096

約数和(自身を除く): 12753219

約数列:

[1, 3, 7, 9, 21, 47, 63, 131, 141, 329, 393, 423, 917, 987, 1179, 2209, 2751, 2961, 6157, 6627, 8253, 15463, 18471, 19881, 43099, 46389, 55413, 129297, 139167, 289379, 387891, 868137, 2025653, 2604411, 6076959, 18230877]

約数ペア:

[(1, 18230877), (3, 6076959), (7, 2604411), (9, 2025653), (21, 868137), (47, 387891), (63, 289379), (131, 139167), (141, 129297), (329, 55413), (393, 46389), (423, 43099), (917, 19881), (987, 18471), (1179, 15463), (2209, 8253), (2751, 6627), (2961, 6157)]