18887868

素因数分解:

$2^2\times 3^2\times {\mathrm{307}}^1\times {\mathrm{1709}}^1$

素因数の和:2026

約数の個数: 36

約数和(自身を含む): 47927880

約数和(自身を除く): 29040012

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 307, 614, 921, 1228, 1709, 1842, 2763, 3418, 3684, 5127, 5526, 6836, 10254, 11052, 15381, 20508, 30762, 61524, 524663, 1049326, 1573989, 2098652, 3147978, 4721967, 6295956, 9443934, 18887868]

約数ペア:

[(1, 18887868), (2, 9443934), (3, 6295956), (4, 4721967), (6, 3147978), (9, 2098652), (12, 1573989), (18, 1049326), (36, 524663), (307, 61524), (614, 30762), (921, 20508), (1228, 15381), (1709, 11052), (1842, 10254), (2763, 6836), (3418, 5526), (3684, 5127)]