211313679

素因数分解:

$3^1\times {\mathrm{71}}^2\times {\mathrm{89}}^1\times {\mathrm{157}}^1$

素因数の和:391

約数の個数: 24

約数和(自身を含む): 290827440

約数和(自身を除く): 79513761

約数列:

[1, 3, 71, 89, 157, 213, 267, 471, 5041, 6319, 11147, 13973, 15123, 18957, 33441, 41919, 448649, 791437, 992083, 1345947, 2374311, 2976249, 70437893, 211313679]

約数ペア:

[(1, 211313679), (3, 70437893), (71, 2976249), (89, 2374311), (157, 1345947), (213, 992083), (267, 791437), (471, 448649), (5041, 41919), (6319, 33441), (11147, 18957), (13973, 15123)]