81323291

素因数分解:

$7^2\times {\mathrm{17}}^1\times {\mathrm{233}}^1\times {\mathrm{419}}^1$

素因数の和:683

約数の個数: 24

約数和(自身を含む): 100835280

約数和(自身を除く): 19511989

約数列:

[1, 7, 17, 49, 119, 233, 419, 833, 1631, 2933, 3961, 7123, 11417, 20531, 27727, 49861, 97627, 194089, 349027, 683389, 1659659, 4783723, 11617613, 81323291]

約数ペア:

[(1, 81323291), (7, 11617613), (17, 4783723), (49, 1659659), (119, 683389), (233, 349027), (419, 194089), (833, 97627), (1631, 49861), (2933, 27727), (3961, 20531), (7123, 11417)]