78269121

素因数分解:

$3^2\times 7^2\times {\mathrm{177481}}^1$

素因数の和:177501

約数の個数: 18

約数和(自身を含む): 131514162

約数和(自身を除く): 53245041

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 177481, 532443, 1242367, 1597329, 3727101, 8696569, 11181303, 26089707, 78269121]

約数ペア:

[(1, 78269121), (3, 26089707), (7, 11181303), (9, 8696569), (21, 3727101), (49, 1597329), (63, 1242367), (147, 532443), (441, 177481)]