20420884

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{487}}^1\times {\mathrm{953}}^1$

素因数の和:1455

約数の個数: 24

約数和(自身を含む): 39106368

約数和(自身を除く): 18685484

約数列:

[1, 2, 4, 11, 22, 44, 487, 953, 974, 1906, 1948, 3812, 5357, 10483, 10714, 20966, 21428, 41932, 464111, 928222, 1856444, 5105221, 10210442, 20420884]

約数ペア:

[(1, 20420884), (2, 10210442), (4, 5105221), (11, 1856444), (22, 928222), (44, 464111), (487, 41932), (953, 21428), (974, 20966), (1906, 10714), (1948, 10483), (3812, 5357)]