20839874

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{30557}}^1$

素因数の和:30601

約数の個数: 16

約数和(自身を含む): 35202816

約数和(自身を除く): 14362942

約数列:

[1, 2, 11, 22, 31, 62, 341, 682, 30557, 61114, 336127, 672254, 947267, 1894534, 10419937, 20839874]

約数ペア:

[(1, 20839874), (2, 10419937), (11, 1894534), (22, 947267), (31, 672254), (62, 336127), (341, 61114), (682, 30557)]