81821883

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{2143}}^1$

素因数の和:2259

約数の個数: 32

約数和(自身を含む): 129669120

約数和(自身を除く): 47847237

約数列:

[1, 3, 11, 13, 33, 39, 89, 143, 267, 429, 979, 1157, 2143, 2937, 3471, 6429, 12727, 23573, 27859, 38181, 70719, 83577, 190727, 306449, 572181, 919347, 2097997, 2479451, 6293991, 7438353, 27273961, 81821883]

約数ペア:

[(1, 81821883), (3, 27273961), (11, 7438353), (13, 6293991), (33, 2479451), (39, 2097997), (89, 919347), (143, 572181), (267, 306449), (429, 190727), (979, 83577), (1157, 70719), (2143, 38181), (2937, 27859), (3471, 23573), (6429, 12727)]