20197980729

素因数分解:

$3^2\times {\mathrm{131}}^1\times {\mathrm{997}}^1\times {\mathrm{17183}}^1$

素因数の和:18317

約数の個数: 24

約数和(自身を含む): 29428768512

約数和(自身を除く): 9230787783

約数列:

[1, 3, 9, 131, 393, 997, 1179, 2991, 8973, 17183, 51549, 130607, 154647, 391821, 1175463, 2250973, 6752919, 17131451, 20258757, 51394353, 154183059, 2244220081, 6732660243, 20197980729]

約数ペア:

[(1, 20197980729), (3, 6732660243), (9, 2244220081), (131, 154183059), (393, 51394353), (997, 20258757), (1179, 17131451), (2991, 6752919), (8973, 2250973), (17183, 1175463), (51549, 391821), (130607, 154647)]