20143487

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{449}}^1$

素因数の和:515

約数の個数: 32

約数和(自身を含む): 27216000

約数和(自身を除く): 7072513

約数列:

[1, 7, 13, 17, 29, 91, 119, 203, 221, 377, 449, 493, 1547, 2639, 3143, 3451, 5837, 6409, 7633, 13021, 40859, 44863, 53431, 91147, 99229, 169273, 221357, 694603, 1184911, 1549499, 2877641, 20143487]

約数ペア:

[(1, 20143487), (7, 2877641), (13, 1549499), (17, 1184911), (29, 694603), (91, 221357), (119, 169273), (203, 99229), (221, 91147), (377, 53431), (449, 44863), (493, 40859), (1547, 13021), (2639, 7633), (3143, 6409), (3451, 5837)]