20051993

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{2213}}^1$

素因数の和:2284

約数の個数: 16

約数和(自身を含む): 23432976

約数和(自身を除く): 3380983

約数列:

[1, 13, 17, 41, 221, 533, 697, 2213, 9061, 28769, 37621, 90733, 489073, 1179529, 1542461, 20051993]

約数ペア:

[(1, 20051993), (13, 1542461), (17, 1179529), (41, 489073), (221, 90733), (533, 37621), (697, 28769), (2213, 9061)]