229307211

素因数分解:

$3^2\times 7^2\times {\mathrm{519971}}^1$

素因数の和:519991

約数の個数: 18

約数和(自身を含む): 385299252

約数和(自身を除く): 155992041

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 519971, 1559913, 3639797, 4679739, 10919391, 25478579, 32758173, 76435737, 229307211]

約数ペア:

[(1, 229307211), (3, 76435737), (7, 32758173), (9, 25478579), (21, 10919391), (49, 4679739), (63, 3639797), (147, 1559913), (441, 519971)]