21956155

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{151}}^1\times {\mathrm{2237}}^1$

素因数の和:2406

約数の個数: 16

約数和(自身を含む): 28574784

約数和(自身を除く): 6618629

約数列:

[1, 5, 13, 65, 151, 755, 1963, 2237, 9815, 11185, 29081, 145405, 337787, 1688935, 4391231, 21956155]

約数ペア:

[(1, 21956155), (5, 4391231), (13, 1688935), (65, 337787), (151, 145405), (755, 29081), (1963, 11185), (2237, 9815)]