20420881491

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{1889}}^1\times {\mathrm{211969}}^1$

素因数の和:213878

約数の個数: 16

約数和(自身を含む): 28844877600

約数和(自身を除く): 8423996109

約数列:

[1, 3, 17, 51, 1889, 5667, 32113, 96339, 211969, 635907, 3603473, 10810419, 400409441, 1201228323, 6806960497, 20420881491]

約数ペア:

[(1, 20420881491), (3, 6806960497), (17, 1201228323), (51, 400409441), (1889, 10810419), (5667, 3603473), (32113, 635907), (96339, 211969)]