20040657

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{10487}}^1$

素因数の和:10517

約数の個数: 24

約数和(自身を含む): 33477696

約数和(自身を除く): 13437039

約数列:

[1, 3, 7, 13, 21, 39, 49, 91, 147, 273, 637, 1911, 10487, 31461, 73409, 136331, 220227, 408993, 513863, 954317, 1541589, 2862951, 6680219, 20040657]

約数ペア:

[(1, 20040657), (3, 6680219), (7, 2862951), (13, 1541589), (21, 954317), (39, 513863), (49, 408993), (91, 220227), (147, 136331), (273, 73409), (637, 31461), (1911, 10487)]