20581220881

素因数分解:

${\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{1380271}}^1$

素因数の和:1380352

約数の個数: 16

約数和(自身を含む): 23497750528

約数和(自身を除く): 2916529647

約数列:

[1, 13, 31, 37, 403, 481, 1147, 14911, 1380271, 17943523, 42788401, 51070027, 556249213, 663910351, 1583170837, 20581220881]

約数ペア:

[(1, 20581220881), (13, 1583170837), (31, 663910351), (37, 556249213), (403, 51070027), (481, 42788401), (1147, 17943523), (14911, 1380271)]