249737215

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{42221}}^1$

素因数の和:42259

約数の個数: 24

約数和(自身を含む): 370878048

約数和(自身を除く): 121140833

約数列:

[1, 5, 7, 13, 35, 65, 91, 169, 455, 845, 1183, 5915, 42221, 211105, 295547, 548873, 1477735, 2744365, 3842111, 7135349, 19210555, 35676745, 49947443, 249737215]

約数ペア:

[(1, 249737215), (5, 49947443), (7, 35676745), (13, 19210555), (35, 7135349), (65, 3842111), (91, 2744365), (169, 1477735), (455, 548873), (845, 295547), (1183, 211105), (5915, 42221)]