20396792

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{4561}}^1$

素因数の和:4623

約数の個数: 32

約数和(自身を含む): 42152880

約数和(自身を除く): 21756088

約数列:

[1, 2, 4, 8, 13, 26, 43, 52, 86, 104, 172, 344, 559, 1118, 2236, 4472, 4561, 9122, 18244, 36488, 59293, 118586, 196123, 237172, 392246, 474344, 784492, 1568984, 2549599, 5099198, 10198396, 20396792]

約数ペア:

[(1, 20396792), (2, 10198396), (4, 5099198), (8, 2549599), (13, 1568984), (26, 784492), (43, 474344), (52, 392246), (86, 237172), (104, 196123), (172, 118586), (344, 59293), (559, 36488), (1118, 18244), (2236, 9122), (4472, 4561)]