31457331

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{2591}}^1$

素因数の和:2687

約数の個数: 24

約数和(自身を含む): 48522240

約数和(自身を除く): 17064909

約数列:

[1, 3, 9, 19, 57, 71, 171, 213, 639, 1349, 2591, 4047, 7773, 12141, 23319, 49229, 147687, 183961, 443061, 551883, 1655649, 3495259, 10485777, 31457331]

約数ペア:

[(1, 31457331), (3, 10485777), (9, 3495259), (19, 1655649), (57, 551883), (71, 443061), (171, 183961), (213, 147687), (639, 49229), (1349, 23319), (2591, 12141), (4047, 7773)]