201018879

素因数分解:

$3^2\times {\mathrm{19}}^2\times {\mathrm{61871}}^1$

素因数の和:61915

約数の個数: 18

約数和(自身を含む): 306452016

約数和(自身を除く): 105433137

約数列:

[1, 3, 9, 19, 57, 171, 361, 1083, 3249, 61871, 185613, 556839, 1175549, 3526647, 10579941, 22335431, 67006293, 201018879]

約数ペア:

[(1, 201018879), (3, 67006293), (9, 22335431), (19, 10579941), (57, 3526647), (171, 1175549), (361, 556839), (1083, 185613), (3249, 61871)]