20823309

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{4139}}^1$

素因数の和:4201

約数の個数: 24

約数和(自身を含む): 33153120

約数和(自身を除く): 12329811

約数列:

[1, 3, 9, 13, 39, 43, 117, 129, 387, 559, 1677, 4139, 5031, 12417, 37251, 53807, 161421, 177977, 484263, 533931, 1601793, 2313701, 6941103, 20823309]

約数ペア:

[(1, 20823309), (3, 6941103), (9, 2313701), (13, 1601793), (39, 533931), (43, 484263), (117, 177977), (129, 161421), (387, 53807), (559, 37251), (1677, 12417), (4139, 5031)]