20539905

素因数分解:

$3^1\times 5^1\times {\mathrm{379}}^1\times {\mathrm{3613}}^1$

素因数の和:4000

約数の個数: 16

約数和(自身を含む): 32959680

約数和(自身を除く): 12419775

約数列:

[1, 3, 5, 15, 379, 1137, 1895, 3613, 5685, 10839, 18065, 54195, 1369327, 4107981, 6846635, 20539905]

約数ペア:

[(1, 20539905), (3, 6846635), (5, 4107981), (15, 1369327), (379, 54195), (1137, 18065), (1895, 10839), (3613, 5685)]