51978105

素因数分解:

$3^4\times 5^1\times {\mathrm{128341}}^1$

素因数の和:128358

約数の個数: 20

約数和(自身を含む): 93176292

約数和(自身を除く): 41198187

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 128341, 385023, 641705, 1155069, 1925115, 3465207, 5775345, 10395621, 17326035, 51978105]

約数ペア:

[(1, 51978105), (3, 17326035), (5, 10395621), (9, 5775345), (15, 3465207), (27, 1925115), (45, 1155069), (81, 641705), (135, 385023), (405, 128341)]