20981950

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{38149}}^1$

素因数の和:38172

約数の個数: 24

約数和(自身を含む): 42575400

約数和(自身を除く): 21593450

約数列:

[1, 2, 5, 10, 11, 22, 25, 50, 55, 110, 275, 550, 38149, 76298, 190745, 381490, 419639, 839278, 953725, 1907450, 2098195, 4196390, 10490975, 20981950]

約数ペア:

[(1, 20981950), (2, 10490975), (5, 4196390), (10, 2098195), (11, 1907450), (22, 953725), (25, 839278), (50, 419639), (55, 381490), (110, 190745), (275, 76298), (550, 38149)]