19922390

素因数分解:

$2^1\times 5^1\times {\mathrm{409}}^1\times {\mathrm{4871}}^1$

素因数の和:5287

約数の個数: 16

約数和(自身を含む): 35955360

約数和(自身を除く): 16032970

約数列:

[1, 2, 5, 10, 409, 818, 2045, 4090, 4871, 9742, 24355, 48710, 1992239, 3984478, 9961195, 19922390]

約数ペア:

[(1, 19922390), (2, 9961195), (5, 3984478), (10, 1992239), (409, 48710), (818, 24355), (2045, 9742), (4090, 4871)]