27890145

素因数分解:

$3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{26947}}^1$

素因数の和:26981

約数の個数: 24

約数和(自身を含む): 50446656

約数和(自身を除く): 22556511

約数列:

[1, 3, 5, 9, 15, 23, 45, 69, 115, 207, 345, 1035, 26947, 80841, 134735, 242523, 404205, 619781, 1212615, 1859343, 3098905, 5578029, 9296715, 27890145]

約数ペア:

[(1, 27890145), (3, 9296715), (5, 5578029), (9, 3098905), (15, 1859343), (23, 1212615), (45, 619781), (69, 404205), (115, 242523), (207, 134735), (345, 80841), (1035, 26947)]