12707721

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{6389}}^1$

素因数の和:6425

約数の個数: 24

約数和(自身を含む): 20933640

約数和(自身を除く): 8225919

約数列:

[1, 3, 9, 13, 17, 39, 51, 117, 153, 221, 663, 1989, 6389, 19167, 57501, 83057, 108613, 249171, 325839, 747513, 977517, 1411969, 4235907, 12707721]

約数ペア:

[(1, 12707721), (3, 4235907), (9, 1411969), (13, 977517), (17, 747513), (39, 325839), (51, 249171), (117, 108613), (153, 83057), (221, 57501), (663, 19167), (1989, 6389)]