21970359

素因数分解:

$3^5\times {\mathrm{23}}^1\times {\mathrm{3931}}^1$

素因数の和:3969

約数の個数: 24

約数和(自身を含む): 34349952

約数和(自身を除く): 12379593

約数列:

[1, 3, 9, 23, 27, 69, 81, 207, 243, 621, 1863, 3931, 5589, 11793, 35379, 90413, 106137, 271239, 318411, 813717, 955233, 2441151, 7323453, 21970359]

約数ペア:

[(1, 21970359), (3, 7323453), (9, 2441151), (23, 955233), (27, 813717), (69, 318411), (81, 271239), (207, 106137), (243, 90413), (621, 35379), (1863, 11793), (3931, 5589)]