18149456

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{87257}}^1$

素因数の和:87278

約数の個数: 20

約数和(自身を含む): 37869972

約数和(自身を除く): 19720516

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 87257, 174514, 349028, 698056, 1134341, 1396112, 2268682, 4537364, 9074728, 18149456]

約数ペア:

[(1, 18149456), (2, 9074728), (4, 4537364), (8, 2268682), (13, 1396112), (16, 1134341), (26, 698056), (52, 349028), (104, 174514), (208, 87257)]