15721421103

素因数分解:

$3^2\times {\mathrm{421}}^1\times {\mathrm{4149227}}^1$

素因数の和:4149654

約数の個数: 12

約数和(自身を含む): 22762664808

約数和(自身を除く): 7041243705

約数列:

[1, 3, 9, 421, 1263, 3789, 4149227, 12447681, 37343043, 1746824567, 5240473701, 15721421103]

約数ペア:

[(1, 15721421103), (3, 5240473701), (9, 1746824567), (421, 37343043), (1263, 12447681), (3789, 4149227)]