251132157

素因数分解:

$3^4\times {\mathrm{101}}^1\times {\mathrm{30697}}^1$

素因数の和:30810

約数の個数: 20

約数和(自身を含む): 378874716

約数和(自身を除く): 127742559

約数列:

[1, 3, 9, 27, 81, 101, 303, 909, 2727, 8181, 30697, 92091, 276273, 828819, 2486457, 3100397, 9301191, 27903573, 83710719, 251132157]

約数ペア:

[(1, 251132157), (3, 83710719), (9, 27903573), (27, 9301191), (81, 3100397), (101, 2486457), (303, 828819), (909, 276273), (2727, 92091), (8181, 30697)]