18712845

素因数分解:

$3^2\times 5^1\times {\mathrm{389}}^1\times {\mathrm{1069}}^1$

素因数の和:1469

約数の個数: 24

約数和(自身を含む): 32549400

約数和(自身を除く): 13836555

約数列:

[1, 3, 5, 9, 15, 45, 389, 1069, 1167, 1945, 3207, 3501, 5345, 5835, 9621, 16035, 17505, 48105, 415841, 1247523, 2079205, 3742569, 6237615, 18712845]

約数ペア:

[(1, 18712845), (3, 6237615), (5, 3742569), (9, 2079205), (15, 1247523), (45, 415841), (389, 48105), (1069, 17505), (1167, 16035), (1945, 9621), (3207, 5835), (3501, 5345)]