211323231

素因数分解:

$3^2\times 7^2\times {\mathrm{479191}}^1$

素因数の和:479211

約数の個数: 18

約数和(自身を含む): 355081272

約数和(自身を除く): 143758041

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 479191, 1437573, 3354337, 4312719, 10063011, 23480359, 30189033, 70441077, 211323231]

約数ペア:

[(1, 211323231), (3, 70441077), (7, 30189033), (9, 23480359), (21, 10063011), (49, 4312719), (63, 3354337), (147, 1437573), (441, 479191)]