7991001

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{421}}^1$

素因数の和:486

約数の個数: 32

約数和(自身を含む): 12828800

約数和(自身を除く): 4837799

約数列:

[1, 3, 9, 19, 27, 37, 57, 111, 171, 333, 421, 513, 703, 999, 1263, 2109, 3789, 6327, 7999, 11367, 15577, 18981, 23997, 46731, 71991, 140193, 215973, 295963, 420579, 887889, 2663667, 7991001]

約数ペア:

[(1, 7991001), (3, 2663667), (9, 887889), (19, 420579), (27, 295963), (37, 215973), (57, 140193), (111, 71991), (171, 46731), (333, 23997), (421, 18981), (513, 15577), (703, 11367), (999, 7999), (1263, 6327), (2109, 3789)]