400505399

素因数分解:

$7^1\times {\mathrm{29}}^1\times {\mathrm{31}}^2\times {\mathrm{2053}}^1$

素因数の和:2151

約数の個数: 24

約数和(自身を含む): 489509280

約数和(自身を除く): 89003881

約数列:

[1, 7, 29, 31, 203, 217, 899, 961, 2053, 6293, 6727, 14371, 27869, 59537, 63643, 195083, 416759, 445501, 1845647, 1972933, 12919529, 13810531, 57215057, 400505399]

約数ペア:

[(1, 400505399), (7, 57215057), (29, 13810531), (31, 12919529), (203, 1972933), (217, 1845647), (899, 445501), (961, 416759), (2053, 195083), (6293, 63643), (6727, 59537), (14371, 27869)]