87128541

素因数分解:

$3^4\times {\mathrm{823}}^1\times {\mathrm{1307}}^1$

素因数の和:2142

約数の個数: 20

約数和(自身を含む): 130412832

約数和(自身を除く): 43284291

約数列:

[1, 3, 9, 27, 81, 823, 1307, 2469, 3921, 7407, 11763, 22221, 35289, 66663, 105867, 1075661, 3226983, 9680949, 29042847, 87128541]

約数ペア:

[(1, 87128541), (3, 29042847), (9, 9680949), (27, 3226983), (81, 1075661), (823, 105867), (1307, 66663), (2469, 35289), (3921, 22221), (7407, 11763)]