19261420

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{22397}}^1$

素因数の和:22449

約数の個数: 24

約数和(自身を含む): 41391504

約数和(自身を除く): 22130084

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 22397, 44794, 89588, 111985, 223970, 447940, 963071, 1926142, 3852284, 4815355, 9630710, 19261420]

約数ペア:

[(1, 19261420), (2, 9630710), (4, 4815355), (5, 3852284), (10, 1926142), (20, 963071), (43, 447940), (86, 223970), (172, 111985), (215, 89588), (430, 44794), (860, 22397)]