20826495

素因数分解:

$3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{15959}}^1$

素因数の和:15999

約数の個数: 24

約数和(自身を含む): 37346400

約数和(自身を除く): 16519905

約数列:

[1, 3, 5, 9, 15, 29, 45, 87, 145, 261, 435, 1305, 15959, 47877, 79795, 143631, 239385, 462811, 718155, 1388433, 2314055, 4165299, 6942165, 20826495]

約数ペア:

[(1, 20826495), (3, 6942165), (5, 4165299), (9, 2314055), (15, 1388433), (29, 718155), (45, 462811), (87, 239385), (145, 143631), (261, 79795), (435, 47877), (1305, 15959)]