18520990

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{108947}}^1$

素因数の和:108971

約数の個数: 16

約数和(自身を含む): 35299152

約数和(自身を除く): 16778162

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 108947, 217894, 544735, 1089470, 1852099, 3704198, 9260495, 18520990]

約数ペア:

[(1, 18520990), (2, 9260495), (5, 3704198), (10, 1852099), (17, 1089470), (34, 544735), (85, 217894), (170, 108947)]