18185985

素因数分解:

$3^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{5857}}^1$

素因数の和:5894

約数の個数: 32

約数和(自身を含む): 33742080

約数和(自身を除く): 15556095

約数列:

[1, 3, 5, 9, 15, 23, 27, 45, 69, 115, 135, 207, 345, 621, 1035, 3105, 5857, 17571, 29285, 52713, 87855, 134711, 158139, 263565, 404133, 673555, 790695, 1212399, 2020665, 3637197, 6061995, 18185985]

約数ペア:

[(1, 18185985), (3, 6061995), (5, 3637197), (9, 2020665), (15, 1212399), (23, 790695), (27, 673555), (45, 404133), (69, 263565), (115, 158139), (135, 134711), (207, 87855), (345, 52713), (621, 29285), (1035, 17571), (3105, 5857)]