20843105

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{379}}^1\times {\mathrm{647}}^1$

素因数の和:1048

約数の個数: 16

約数和(自身を含む): 26593920

約数和(自身を除く): 5750815

約数列:

[1, 5, 17, 85, 379, 647, 1895, 3235, 6443, 10999, 32215, 54995, 245213, 1226065, 4168621, 20843105]

約数ペア:

[(1, 20843105), (5, 4168621), (17, 1226065), (85, 245213), (379, 54995), (647, 32215), (1895, 10999), (3235, 6443)]