1565217

素因数分解:

$3^3\times {\mathrm{29}}^1\times {\mathrm{1999}}^1$

素因数の和:2037

約数の個数: 16

約数和(自身を含む): 2400000

約数和(自身を除く): 834783

約数列:

[1, 3, 9, 27, 29, 87, 261, 783, 1999, 5997, 17991, 53973, 57971, 173913, 521739, 1565217]

約数ペア:

[(1, 1565217), (3, 521739), (9, 173913), (27, 57971), (29, 53973), (87, 17991), (261, 5997), (783, 1999)]