19957572

素因数分解:

$2^2\times 3^2\times {\mathrm{554377}}^1$

素因数の和:554387

約数の個数: 18

約数和(自身を含む): 50448398

約数和(自身を除く): 30490826

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 554377, 1108754, 1663131, 2217508, 3326262, 4989393, 6652524, 9978786, 19957572]

約数ペア:

[(1, 19957572), (2, 9978786), (3, 6652524), (4, 4989393), (6, 3326262), (9, 2217508), (12, 1663131), (18, 1108754), (36, 554377)]