20551115

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{421}}^1\times {\mathrm{751}}^1$

素因数の和:1190

約数の個数: 16

約数和(自身を含む): 26656896

約数和(自身を除く): 6105781

約数列:

[1, 5, 13, 65, 421, 751, 2105, 3755, 5473, 9763, 27365, 48815, 316171, 1580855, 4110223, 20551115]

約数ペア:

[(1, 20551115), (5, 4110223), (13, 1580855), (65, 316171), (421, 48815), (751, 27365), (2105, 9763), (3755, 5473)]