81867.00000000

素因数分解:

$3^2\times {\mathrm{23}}^2\times {\mathrm{37}}^1\times {\mathrm{79}}^1$

素因数の和:168

約数の個数: 36

約数和(自身を含む): 21854560

約数和(自身を除く): 7938157

約数列:

[1, 3, 9, 23, 37, 69, 79, 111, 207, 237, 333, 529, 711, 851, 1587, 1817, 2553, 2923, 4761, 5451, 7659, 8769, 16353, 19573, 26307, 41791, 58719, 67229, 125373, 176157, 201687, 376119, 605061, 1546267, 4638801, 13916403]

約数ペア:

[(1, 13916403), (3, 4638801), (9, 1546267), (23, 605061), (37, 376119), (69, 201687), (79, 176157), (111, 125373), (207, 67229), (237, 58719), (333, 41791), (529, 26307), (711, 19573), (851, 16353), (1587, 8769), (1817, 7659), (2553, 5451), (2923, 4761)]