2189997

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{1423}}^1$

素因数の和:1454

約数の個数: 20

約数和(自身を含む): 3446080

約数和(自身を除く): 1256083

約数列:

[1, 3, 9, 19, 27, 57, 81, 171, 513, 1423, 1539, 4269, 12807, 27037, 38421, 81111, 115263, 243333, 729999, 2189997]

約数ペア:

[(1, 2189997), (3, 729999), (9, 243333), (19, 115263), (27, 81111), (57, 38421), (81, 27037), (171, 12807), (513, 4269), (1423, 1539)]