20478456

素因数分解:

$2^3\times 3^2\times {\mathrm{284423}}^1$

素因数の和:284435

約数の個数: 24

約数和(自身を含む): 55462680

約数和(自身を除く): 34984224

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 284423, 568846, 853269, 1137692, 1706538, 2275384, 2559807, 3413076, 5119614, 6826152, 10239228, 20478456]

約数ペア:

[(1, 20478456), (2, 10239228), (3, 6826152), (4, 5119614), (6, 3413076), (8, 2559807), (9, 2275384), (12, 1706538), (18, 1137692), (24, 853269), (36, 568846), (72, 284423)]