8161881

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{4271}}^1$

素因数の和:4301

約数の個数: 24

約数和(自身を含む): 13636224

約数和(自身を除く): 5474343

約数列:

[1, 3, 7, 13, 21, 39, 49, 91, 147, 273, 637, 1911, 4271, 12813, 29897, 55523, 89691, 166569, 209279, 388661, 627837, 1165983, 2720627, 8161881]

約数ペア:

[(1, 8161881), (3, 2720627), (7, 1165983), (13, 627837), (21, 388661), (39, 209279), (49, 166569), (91, 89691), (147, 55523), (273, 29897), (637, 12813), (1911, 4271)]