20398961

素因数分解:

${\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{163}}^1\times {\mathrm{367}}^1$

素因数の和:572

約数の個数: 16

約数和(自身を含む): 23175168

約数和(自身を除く): 2776207

約数列:

[1, 11, 31, 163, 341, 367, 1793, 4037, 5053, 11377, 55583, 59821, 125147, 658031, 1854451, 20398961]

約数ペア:

[(1, 20398961), (11, 1854451), (31, 658031), (163, 125147), (341, 59821), (367, 55583), (1793, 11377), (4037, 5053)]