28039428

素因数分解:

$2^2\times 3^2\times {\mathrm{778873}}^1$

素因数の和:778883

約数の個数: 18

約数和(自身を含む): 70877534

約数和(自身を除く): 42838106

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 778873, 1557746, 2336619, 3115492, 4673238, 7009857, 9346476, 14019714, 28039428]

約数ペア:

[(1, 28039428), (2, 14019714), (3, 9346476), (4, 7009857), (6, 4673238), (9, 3115492), (12, 2336619), (18, 1557746), (36, 778873)]