20961531

素因数分解:

$3^3\times {\mathrm{607}}^1\times {\mathrm{1279}}^1$

素因数の和:1895

約数の個数: 16

約数和(自身を含む): 31129600

約数和(自身を除く): 10168069

約数列:

[1, 3, 9, 27, 607, 1279, 1821, 3837, 5463, 11511, 16389, 34533, 776353, 2329059, 6987177, 20961531]

約数ペア:

[(1, 20961531), (3, 6987177), (9, 2329059), (27, 776353), (607, 34533), (1279, 16389), (1821, 11511), (3837, 5463)]