20216043

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{1861}}^1$

素因数の和:1955

約数の個数: 24

約数和(自身を含む): 31370976

約数和(自身を除く): 11154933

約数列:

[1, 3, 9, 17, 51, 71, 153, 213, 639, 1207, 1861, 3621, 5583, 10863, 16749, 31637, 94911, 132131, 284733, 396393, 1189179, 2246227, 6738681, 20216043]

約数ペア:

[(1, 20216043), (3, 6738681), (9, 2246227), (17, 1189179), (51, 396393), (71, 284733), (153, 132131), (213, 94911), (639, 31637), (1207, 16749), (1861, 10863), (3621, 5583)]