81664467

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{137}}^1\times {\mathrm{163}}^1$

素因数の和:379

約数の個数: 32

約数和(自身を含む): 117324288

約数和(自身を除く): 35659821

約数列:

[1, 3, 23, 53, 69, 137, 159, 163, 411, 489, 1219, 3151, 3657, 3749, 7261, 8639, 9453, 11247, 21783, 22331, 25917, 66993, 167003, 198697, 501009, 513613, 596091, 1183543, 1540839, 3550629, 27221489, 81664467]

約数ペア:

[(1, 81664467), (3, 27221489), (23, 3550629), (53, 1540839), (69, 1183543), (137, 596091), (159, 513613), (163, 501009), (411, 198697), (489, 167003), (1219, 66993), (3151, 25917), (3657, 22331), (3749, 21783), (7261, 11247), (8639, 9453)]