7987491

素因数分解:

$3^4\times {\mathrm{31}}^1\times {\mathrm{3181}}^1$

素因数の和:3224

約数の個数: 20

約数和(自身を含む): 12320704

約数和(自身を除く): 4333213

約数列:

[1, 3, 9, 27, 31, 81, 93, 279, 837, 2511, 3181, 9543, 28629, 85887, 98611, 257661, 295833, 887499, 2662497, 7987491]

約数ペア:

[(1, 7987491), (3, 2662497), (9, 887499), (27, 295833), (31, 257661), (81, 98611), (93, 85887), (279, 28629), (837, 9543), (2511, 3181)]