31221905

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{3359}}^1$

素因数の和:3401

約数の個数: 24

約数和(自身を含む): 44271360

約数和(自身を除く): 13049455

約数列:

[1, 5, 11, 13, 55, 65, 143, 169, 715, 845, 1859, 3359, 9295, 16795, 36949, 43667, 184745, 218335, 480337, 567671, 2401685, 2838355, 6244381, 31221905]

約数ペア:

[(1, 31221905), (5, 6244381), (11, 2838355), (13, 2401685), (55, 567671), (65, 480337), (143, 218335), (169, 184745), (715, 43667), (845, 36949), (1859, 16795), (3359, 9295)]