255768291

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{191}}^2$

素因数の和:448

約数の個数: 36

約数和(自身を含む): 400469160

約数和(自身を除く): 144700869

約数列:

[1, 3, 9, 19, 41, 57, 123, 171, 191, 369, 573, 779, 1719, 2337, 3629, 7011, 7831, 10887, 23493, 32661, 36481, 70479, 109443, 148789, 328329, 446367, 693139, 1339101, 1495721, 2079417, 4487163, 6238251, 13461489, 28418699, 85256097, 255768291]

約数ペア:

[(1, 255768291), (3, 85256097), (9, 28418699), (19, 13461489), (41, 6238251), (57, 4487163), (123, 2079417), (171, 1495721), (191, 1339101), (369, 693139), (573, 446367), (779, 328329), (1719, 148789), (2337, 109443), (3629, 70479), (7011, 36481), (7831, 32661), (10887, 23493)]