20121520257

素因数分解:

$3^3\times {\mathrm{569}}^1\times {\mathrm{1309739}}^1$

素因数の和:1310317

約数の個数: 16

約数和(自身を含む): 29862072000

約数和(自身を除く): 9740551743

約数列:

[1, 3, 9, 27, 569, 1707, 5121, 15363, 1309739, 3929217, 11787651, 35362953, 745241491, 2235724473, 6707173419, 20121520257]

約数ペア:

[(1, 20121520257), (3, 6707173419), (9, 2235724473), (27, 745241491), (569, 35362953), (1707, 11787651), (5121, 3929217), (15363, 1309739)]