221731255

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{131}}^1\times {\mathrm{19913}}^1$

素因数の和:20066

約数の個数: 16

約数和(自身を含む): 283893984

約数和(自身を除く): 62162729

約数列:

[1, 5, 17, 85, 131, 655, 2227, 11135, 19913, 99565, 338521, 1692605, 2608603, 13043015, 44346251, 221731255]

約数ペア:

[(1, 221731255), (5, 44346251), (17, 13043015), (85, 2608603), (131, 1692605), (655, 338521), (2227, 99565), (11135, 19913)]