20290396

素因数分解:

$2^2\times 7^1\times {\mathrm{557}}^1\times {\mathrm{1301}}^1$

素因数の和:1869

約数の個数: 24

約数和(自身を含む): 40684896

約数和(自身を除く): 20394500

約数列:

[1, 2, 4, 7, 14, 28, 557, 1114, 1301, 2228, 2602, 3899, 5204, 7798, 9107, 15596, 18214, 36428, 724657, 1449314, 2898628, 5072599, 10145198, 20290396]

約数ペア:

[(1, 20290396), (2, 10145198), (4, 5072599), (7, 2898628), (14, 1449314), (28, 724657), (557, 36428), (1114, 18214), (1301, 15596), (2228, 9107), (2602, 7798), (3899, 5204)]