2221505

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{239}}^1$

素因数の和:281

約数の個数: 24

約数和(自身を含む): 3162240

約数和(自身を除く): 940735

約数列:

[1, 5, 11, 13, 55, 65, 143, 169, 239, 715, 845, 1195, 1859, 2629, 3107, 9295, 13145, 15535, 34177, 40391, 170885, 201955, 444301, 2221505]

約数ペア:

[(1, 2221505), (5, 444301), (11, 201955), (13, 170885), (55, 40391), (65, 34177), (143, 15535), (169, 13145), (239, 9295), (715, 3107), (845, 2629), (1195, 1859)]