256486191

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{8231}}^1$

素因数の和:8311

約数の個数: 32

約数和(自身を含む): 398297088

約数和(自身を除く): 141810897

約数列:

[1, 3, 13, 17, 39, 47, 51, 141, 221, 611, 663, 799, 1833, 2397, 8231, 10387, 24693, 31161, 107003, 139927, 321009, 386857, 419781, 1160571, 1819051, 5029141, 5457153, 6576569, 15087423, 19729707, 85495397, 256486191]

約数ペア:

[(1, 256486191), (3, 85495397), (13, 19729707), (17, 15087423), (39, 6576569), (47, 5457153), (51, 5029141), (141, 1819051), (221, 1160571), (611, 419781), (663, 386857), (799, 321009), (1833, 139927), (2397, 107003), (8231, 31161), (10387, 24693)]