81003915

素因数分解:

$3^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{16217}}^1$

素因数の和:16268

約数の個数: 32

約数和(自身を含む): 147908160

約数和(自身を除く): 66904245

約数列:

[1, 3, 5, 9, 15, 27, 37, 45, 111, 135, 185, 333, 555, 999, 1665, 4995, 16217, 48651, 81085, 145953, 243255, 437859, 600029, 729765, 1800087, 2189295, 3000145, 5400261, 9000435, 16200783, 27001305, 81003915]

約数ペア:

[(1, 81003915), (3, 27001305), (5, 16200783), (9, 9000435), (15, 5400261), (27, 3000145), (37, 2189295), (45, 1800087), (111, 729765), (135, 600029), (185, 437859), (333, 243255), (555, 145953), (999, 81085), (1665, 48651), (4995, 16217)]