28704347

素因数分解:

$7^2\times {\mathrm{17}}^2\times {\mathrm{2027}}^1$

素因数の和:2075

約数の個数: 18

約数和(自身を含む): 35487972

約数和(自身を除く): 6783625

約数列:

[1, 7, 17, 49, 119, 289, 833, 2023, 2027, 14161, 14189, 34459, 99323, 241213, 585803, 1688491, 4100621, 28704347]

約数ペア:

[(1, 28704347), (7, 4100621), (17, 1688491), (49, 585803), (119, 241213), (289, 99323), (833, 34459), (2023, 14189), (2027, 14161)]