20721993826

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{397}}^1\times {\mathrm{1373591}}^1$

素因数の和:1374009

約数の個数: 16

約数和(自身を含む): 32801376960

約数和(自身を除く): 12079383134

約数列:

[1, 2, 19, 38, 397, 794, 7543, 15086, 1373591, 2747182, 26098229, 52196458, 545315627, 1090631254, 10360996913, 20721993826]

約数ペア:

[(1, 20721993826), (2, 10360996913), (19, 1090631254), (38, 545315627), (397, 52196458), (794, 26098229), (7543, 2747182), (15086, 1373591)]