21779421

素因数分解:

$3^1\times {\mathrm{37}}^2\times {\mathrm{5303}}^1$

素因数の和:5380

約数の個数: 12

約数和(自身を含む): 29850912

約数和(自身を除く): 8071491

約数列:

[1, 3, 37, 111, 1369, 4107, 5303, 15909, 196211, 588633, 7259807, 21779421]

約数ペア:

[(1, 21779421), (3, 7259807), (37, 588633), (111, 196211), (1369, 15909), (4107, 5303)]