21897567

素因数分解:

$3^3\times {\mathrm{41}}^1\times {\mathrm{131}}^1\times {\mathrm{151}}^1$

素因数の和:332

約数の個数: 32

約数和(自身を含む): 33707520

約数和(自身を除く): 11809953

約数列:

[1, 3, 9, 27, 41, 123, 131, 151, 369, 393, 453, 1107, 1179, 1359, 3537, 4077, 5371, 6191, 16113, 18573, 19781, 48339, 55719, 59343, 145017, 167157, 178029, 534087, 811021, 2433063, 7299189, 21897567]

約数ペア:

[(1, 21897567), (3, 7299189), (9, 2433063), (27, 811021), (41, 534087), (123, 178029), (131, 167157), (151, 145017), (369, 59343), (393, 55719), (453, 48339), (1107, 19781), (1179, 18573), (1359, 16113), (3537, 6191), (4077, 5371)]