209809638

素因数分解:

$2^1\times 3^2\times {\mathrm{409}}^1\times {\mathrm{28499}}^1$

素因数の和:28916

約数の個数: 24

約数和(自身を含む): 455715000

約数和(自身を除く): 245905362

約数列:

[1, 2, 3, 6, 9, 18, 409, 818, 1227, 2454, 3681, 7362, 28499, 56998, 85497, 170994, 256491, 512982, 11656091, 23312182, 34968273, 69936546, 104904819, 209809638]

約数ペア:

[(1, 209809638), (2, 104904819), (3, 69936546), (6, 34968273), (9, 23312182), (18, 11656091), (409, 512982), (818, 256491), (1227, 170994), (2454, 85497), (3681, 56998), (7362, 28499)]