21945951

素因数分解:

$3^3\times {\mathrm{109}}^1\times {\mathrm{7457}}^1$

素因数の和:7575

約数の個数: 16

約数和(自身を含む): 32815200

約数和(自身を除く): 10869249

約数列:

[1, 3, 9, 27, 109, 327, 981, 2943, 7457, 22371, 67113, 201339, 812813, 2438439, 7315317, 21945951]

約数ペア:

[(1, 21945951), (3, 7315317), (9, 2438439), (27, 812813), (109, 201339), (327, 67113), (981, 22371), (2943, 7457)]