90020721

素因数分解:

$3^1\times 7^1\times {\mathrm{83}}^1\times {\mathrm{51647}}^1$

素因数の和:51740

約数の個数: 16

約数和(自身を含む): 138829824

約数和(自身を除く): 48809103

約数列:

[1, 3, 7, 21, 83, 249, 581, 1743, 51647, 154941, 361529, 1084587, 4286701, 12860103, 30006907, 90020721]

約数ペア:

[(1, 90020721), (3, 30006907), (7, 12860103), (21, 4286701), (83, 1084587), (249, 361529), (581, 154941), (1743, 51647)]