217617825

素因数分解:

$3^1\times 5^2\times {\mathrm{2901571}}^1$

素因数の和:2901584

約数の個数: 12

約数和(自身を含む): 359794928

約数和(自身を除く): 142177103

約数列:

[1, 3, 5, 15, 25, 75, 2901571, 8704713, 14507855, 43523565, 72539275, 217617825]

約数ペア:

[(1, 217617825), (3, 72539275), (5, 43523565), (15, 14507855), (25, 8704713), (75, 2901571)]