21666344

素因数分解:

$2^3\times 7^1\times {\mathrm{421}}^1\times {\mathrm{919}}^1$

素因数の和:1353

約数の個数: 32

約数和(自身を含む): 46588800

約数和(自身を除く): 24922456

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 421, 842, 919, 1684, 1838, 2947, 3368, 3676, 5894, 6433, 7352, 11788, 12866, 23576, 25732, 51464, 386899, 773798, 1547596, 2708293, 3095192, 5416586, 10833172, 21666344]

約数ペア:

[(1, 21666344), (2, 10833172), (4, 5416586), (7, 3095192), (8, 2708293), (14, 1547596), (28, 773798), (56, 386899), (421, 51464), (842, 25732), (919, 23576), (1684, 12866), (1838, 11788), (2947, 7352), (3368, 6433), (3676, 5894)]