220221609

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{137}}^1\times {\mathrm{28201}}^1$

素因数の和:28360

約数の個数: 16

約数和(自身を含む): 311350080

約数和(自身を除く): 91128471

約数列:

[1, 3, 19, 57, 137, 411, 2603, 7809, 28201, 84603, 535819, 1607457, 3863537, 11590611, 73407203, 220221609]

約数ペア:

[(1, 220221609), (3, 73407203), (19, 11590611), (57, 3863537), (137, 1607457), (411, 535819), (2603, 84603), (7809, 28201)]