21856497

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{5441}}^1$

素因数の和:5560

約数の個数: 16

約数和(自身を含む): 31694208

約数和(自身を除く): 9837711

約数列:

[1, 3, 13, 39, 103, 309, 1339, 4017, 5441, 16323, 70733, 212199, 560423, 1681269, 7285499, 21856497]

約数ペア:

[(1, 21856497), (3, 7285499), (13, 1681269), (39, 560423), (103, 212199), (309, 70733), (1339, 16323), (4017, 5441)]