21746780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{98849}}^1$

素因数の和:98869

約数の個数: 24

約数和(自身を含む): 49820400

約数和(自身を除く): 28073620

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 98849, 197698, 395396, 494245, 988490, 1087339, 1976980, 2174678, 4349356, 5436695, 10873390, 21746780]

約数ペア:

[(1, 21746780), (2, 10873390), (4, 5436695), (5, 4349356), (10, 2174678), (11, 1976980), (20, 1087339), (22, 988490), (44, 494245), (55, 395396), (110, 197698), (220, 98849)]