729999

素因数分解:

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

素因数の和:1451

約数の個数: 16

約数和(自身を含む): 1139200

約数和(自身を除く): 409201

約数列:

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

約数ペア:

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