20718489

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{15313}}^1$

素因数の和:15368

約数の個数: 16

約数和(自身を含む): 30873024

約数和(自身を除く): 10154535

約数列:

[1, 3, 11, 33, 41, 123, 451, 1353, 15313, 45939, 168443, 505329, 627833, 1883499, 6906163, 20718489]

約数ペア:

[(1, 20718489), (3, 6906163), (11, 1883499), (33, 627833), (41, 505329), (123, 168443), (451, 45939), (1353, 15313)]