28665147

素因数分解:

$3^1\times 7^2\times {\mathrm{109}}^1\times {\mathrm{1789}}^1$

素因数の和:1915

約数の個数: 24

約数和(自身を含む): 44893200

約数和(自身を除く): 16228053

約数列:

[1, 3, 7, 21, 49, 109, 147, 327, 763, 1789, 2289, 5341, 5367, 12523, 16023, 37569, 87661, 195001, 262983, 585003, 1365007, 4095021, 9555049, 28665147]

約数ペア:

[(1, 28665147), (3, 9555049), (7, 4095021), (21, 1365007), (49, 585003), (109, 262983), (147, 195001), (327, 87661), (763, 37569), (1789, 16023), (2289, 12523), (5341, 5367)]