21563416

素因数分解:

$2^3\times 7^1\times {\mathrm{419}}^1\times {\mathrm{919}}^1$

素因数の和:1351

約数の個数: 32

約数和(自身を含む): 46368000

約数和(自身を除く): 24804584

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 419, 838, 919, 1676, 1838, 2933, 3352, 3676, 5866, 6433, 7352, 11732, 12866, 23464, 25732, 51464, 385061, 770122, 1540244, 2695427, 3080488, 5390854, 10781708, 21563416]

約数ペア:

[(1, 21563416), (2, 10781708), (4, 5390854), (7, 3080488), (8, 2695427), (14, 1540244), (28, 770122), (56, 385061), (419, 51464), (838, 25732), (919, 23464), (1676, 12866), (1838, 11732), (2933, 7352), (3352, 6433), (3676, 5866)]