19620185

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{151}}^1\times {\mathrm{1999}}^1$

素因数の和:2168

約数の個数: 16

約数和(自身を含む): 25536000

約数和(自身を除く): 5915815

約数列:

[1, 5, 13, 65, 151, 755, 1963, 1999, 9815, 9995, 25987, 129935, 301849, 1509245, 3924037, 19620185]

約数ペア:

[(1, 19620185), (5, 3924037), (13, 1509245), (65, 301849), (151, 129935), (755, 25987), (1963, 9995), (1999, 9815)]