21175495

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{2939}}^1$

素因数の和:3086

約数の個数: 16

約数和(自身を含む): 27941760

約数和(自身を除く): 6766265

約数列:

[1, 5, 11, 55, 131, 655, 1441, 2939, 7205, 14695, 32329, 161645, 385009, 1925045, 4235099, 21175495]

約数ペア:

[(1, 21175495), (5, 4235099), (11, 1925045), (55, 385009), (131, 161645), (655, 32329), (1441, 14695), (2939, 7205)]