21020938

素因数分解:

$2^1\times {\mathrm{47}}^1\times {\mathrm{113}}^1\times {\mathrm{1979}}^1$

素因数の和:2141

約数の個数: 16

約数和(自身を含む): 32503680

約数和(自身を除く): 11482742

約数列:

[1, 2, 47, 94, 113, 226, 1979, 3958, 5311, 10622, 93013, 186026, 223627, 447254, 10510469, 21020938]

約数ペア:

[(1, 21020938), (2, 10510469), (47, 447254), (94, 223627), (113, 186026), (226, 93013), (1979, 10622), (3958, 5311)]