21945843

素因数分解:

$3^3\times {\mathrm{113}}^1\times {\mathrm{7193}}^1$

素因数の和:7315

約数の個数: 16

約数和(自身を含む): 32804640

約数和(自身を除く): 10858797

約数列:

[1, 3, 9, 27, 113, 339, 1017, 3051, 7193, 21579, 64737, 194211, 812809, 2438427, 7315281, 21945843]

約数ペア:

[(1, 21945843), (3, 7315281), (9, 2438427), (27, 812809), (113, 194211), (339, 64737), (1017, 21579), (3051, 7193)]