18426820

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{19603}}^1$

素因数の和:19659

約数の個数: 24

約数和(自身を含む): 39521664

約数和(自身を除く): 21094844

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 188, 235, 470, 940, 19603, 39206, 78412, 98015, 196030, 392060, 921341, 1842682, 3685364, 4606705, 9213410, 18426820]

約数ペア:

[(1, 18426820), (2, 9213410), (4, 4606705), (5, 3685364), (10, 1842682), (20, 921341), (47, 392060), (94, 196030), (188, 98015), (235, 78412), (470, 39206), (940, 19603)]