20005153

素因数分解:

$7^1\times {\mathrm{89}}^1\times {\mathrm{163}}^1\times {\mathrm{197}}^1$

素因数の和:456

約数の個数: 16

約数和(自身を含む): 23379840

約数和(自身を除く): 3374687

約数列:

[1, 7, 89, 163, 197, 623, 1141, 1379, 14507, 17533, 32111, 101549, 122731, 224777, 2857879, 20005153]

約数ペア:

[(1, 20005153), (7, 2857879), (89, 224777), (163, 122731), (197, 101549), (623, 32111), (1141, 17533), (1379, 14507)]