17991886

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{157}}^1\times {\mathrm{5209}}^1$

素因数の和:5379

約数の個数: 16

約数和(自身を含む): 29634480

約数和(自身を除く): 11642594

約数列:

[1, 2, 11, 22, 157, 314, 1727, 3454, 5209, 10418, 57299, 114598, 817813, 1635626, 8995943, 17991886]

約数ペア:

[(1, 17991886), (2, 8995943), (11, 1635626), (22, 817813), (157, 114598), (314, 57299), (1727, 10418), (3454, 5209)]