28012815

素因数分解:

$3^2\times 5^1\times {\mathrm{509}}^1\times {\mathrm{1223}}^1$

素因数の和:1743

約数の個数: 24

約数和(自身を含む): 48690720

約数和(自身を除く): 20677905

約数列:

[1, 3, 5, 9, 15, 45, 509, 1223, 1527, 2545, 3669, 4581, 6115, 7635, 11007, 18345, 22905, 55035, 622507, 1867521, 3112535, 5602563, 9337605, 28012815]

約数ペア:

[(1, 28012815), (3, 9337605), (5, 5602563), (9, 3112535), (15, 1867521), (45, 622507), (509, 55035), (1223, 22905), (1527, 18345), (2545, 11007), (3669, 7635), (4581, 6115)]