201381705

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{639307}}^1$

素因数の和:639325

約数の個数: 24

約数和(自身を含む): 398928192

約数和(自身を除く): 197546487

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 315, 639307, 1917921, 3196535, 4475149, 5753763, 9589605, 13425447, 22375745, 28768815, 40276341, 67127235, 201381705]

約数ペア:

[(1, 201381705), (3, 67127235), (5, 40276341), (7, 28768815), (9, 22375745), (15, 13425447), (21, 9589605), (35, 5753763), (45, 4475149), (63, 3196535), (105, 1917921), (315, 639307)]