81904557

素因数分解:

$3^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{73589}}^1$

素因数の和:73652

約数の個数: 16

約数和(自身を含む): 127163520

約数和(自身を除く): 45258963

約数列:

[1, 3, 7, 21, 53, 159, 371, 1113, 73589, 220767, 515123, 1545369, 3900217, 11700651, 27301519, 81904557]

約数ペア:

[(1, 81904557), (3, 27301519), (7, 11700651), (21, 3900217), (53, 1545369), (159, 515123), (371, 220767), (1113, 73589)]