1664001

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{263}}^1$

素因数の和:325

約数の個数: 24

約数和(自身を含む): 2608320

約数和(自身を除く): 944319

約数列:

[1, 3, 9, 19, 37, 57, 111, 171, 263, 333, 703, 789, 2109, 2367, 4997, 6327, 9731, 14991, 29193, 44973, 87579, 184889, 554667, 1664001]

約数ペア:

[(1, 1664001), (3, 554667), (9, 184889), (19, 87579), (37, 44973), (57, 29193), (111, 14991), (171, 9731), (263, 6327), (333, 4997), (703, 2367), (789, 2109)]