20925405

素因数分解:

$3^3\times 5^1\times {\mathrm{155003}}^1$

素因数の和:155017

約数の個数: 16

約数和(自身を含む): 37200960

約数和(自身を除く): 16275555

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 155003, 465009, 775015, 1395027, 2325045, 4185081, 6975135, 20925405]

約数ペア:

[(1, 20925405), (3, 6975135), (5, 4185081), (9, 2325045), (15, 1395027), (27, 775015), (45, 465009), (135, 155003)]