21371619

素因数分解:

$3^1\times {\mathrm{41}}^1\times {\mathrm{239}}^1\times {\mathrm{727}}^1$

素因数の和:1010

約数の個数: 16

約数和(自身を含む): 29352960

約数和(自身を除く): 7981341

約数列:

[1, 3, 41, 123, 239, 717, 727, 2181, 9799, 29397, 29807, 89421, 173753, 521259, 7123873, 21371619]

約数ペア:

[(1, 21371619), (3, 7123873), (41, 521259), (123, 173753), (239, 89421), (717, 29807), (727, 29397), (2181, 9799)]