20439423

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{103}}^1\times {\mathrm{1297}}^1$

素因数の和:1423

約数の個数: 24

約数和(自身を含む): 31588128

約数和(自身を除く): 11148705

約数列:

[1, 3, 9, 17, 51, 103, 153, 309, 927, 1297, 1751, 3891, 5253, 11673, 15759, 22049, 66147, 133591, 198441, 400773, 1202319, 2271047, 6813141, 20439423]

約数ペア:

[(1, 20439423), (3, 6813141), (9, 2271047), (17, 1202319), (51, 400773), (103, 198441), (153, 133591), (309, 66147), (927, 22049), (1297, 15759), (1751, 11673), (3891, 5253)]