20826445

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{2753}}^1$

素因数の和:2864

約数の個数: 16

約数和(自身を含む): 26768880

約数和(自身を除く): 5942435

約数列:

[1, 5, 17, 85, 89, 445, 1513, 2753, 7565, 13765, 46801, 234005, 245017, 1225085, 4165289, 20826445]

約数ペア:

[(1, 20826445), (5, 4165289), (17, 1225085), (85, 245017), (89, 234005), (445, 46801), (1513, 13765), (2753, 7565)]