21138032151

素因数分解:

$3^2\times {\mathrm{12491}}^1\times {\mathrm{188029}}^1$

素因数の和:200526

約数の個数: 12

約数和(自身を含む): 30535319880

約数和(自身を除く): 9397287729

約数列:

[1, 3, 9, 12491, 37473, 112419, 188029, 564087, 1692261, 2348670239, 7046010717, 21138032151]

約数ペア:

[(1, 21138032151), (3, 7046010717), (9, 2348670239), (12491, 1692261), (37473, 564087), (112419, 188029)]