20521468

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{6389}}^1$

素因数の和:6477

約数の個数: 24

約数和(自身を含む): 39720240

約数和(自身を除く): 19198772

約数列:

[1, 2, 4, 11, 22, 44, 73, 146, 292, 803, 1606, 3212, 6389, 12778, 25556, 70279, 140558, 281116, 466397, 932794, 1865588, 5130367, 10260734, 20521468]

約数ペア:

[(1, 20521468), (2, 10260734), (4, 5130367), (11, 1865588), (22, 932794), (44, 466397), (73, 281116), (146, 140558), (292, 70279), (803, 25556), (1606, 12778), (3212, 6389)]