291249273231

素因数分解:

$3^2\times 7^2\times {\mathrm{660429191}}^1$

素因数の和:660429211

約数の個数: 18

約数和(自身を含む): 489378031272

約数和(自身を除く): 198128758041

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 660429191, 1981287573, 4623004337, 5943862719, 13869013011, 32361030359, 41607039033, 97083091077, 291249273231]

約数ペア:

[(1, 291249273231), (3, 97083091077), (7, 41607039033), (9, 32361030359), (21, 13869013011), (49, 5943862719), (63, 4623004337), (147, 1981287573), (441, 660429191)]