21334540

素因数分解:

$2^2\times 5^1\times {\mathrm{277}}^1\times {\mathrm{3851}}^1$

素因数の和:4137

約数の個数: 24

約数和(自身を含む): 44975952

約数和(自身を除く): 23641412

約数列:

[1, 2, 4, 5, 10, 20, 277, 554, 1108, 1385, 2770, 3851, 5540, 7702, 15404, 19255, 38510, 77020, 1066727, 2133454, 4266908, 5333635, 10667270, 21334540]

約数ペア:

[(1, 21334540), (2, 10667270), (4, 5333635), (5, 4266908), (10, 2133454), (20, 1066727), (277, 77020), (554, 38510), (1108, 19255), (1385, 15404), (2770, 7702), (3851, 5540)]