18994270

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{111731}}^1$

素因数の和:111755

約数の個数: 16

約数和(自身を含む): 36201168

約数和(自身を除く): 17206898

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 111731, 223462, 558655, 1117310, 1899427, 3798854, 9497135, 18994270]

約数ペア:

[(1, 18994270), (2, 9497135), (5, 3798854), (10, 1899427), (17, 1117310), (34, 558655), (85, 223462), (170, 111731)]