7856121

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{4111}}^1$

素因数の和:4141

約数の個数: 24

約数和(自身を含む): 13125504

約数和(自身を除く): 5269383

約数列:

[1, 3, 7, 13, 21, 39, 49, 91, 147, 273, 637, 1911, 4111, 12333, 28777, 53443, 86331, 160329, 201439, 374101, 604317, 1122303, 2618707, 7856121]

約数ペア:

[(1, 7856121), (3, 2618707), (7, 1122303), (13, 604317), (21, 374101), (39, 201439), (49, 160329), (91, 86331), (147, 53443), (273, 28777), (637, 12333), (1911, 4111)]