31187151

素因数分解:

$3^2\times {\mathrm{19}}^2\times {\mathrm{29}}^1\times {\mathrm{331}}^1$

素因数の和:404

約数の個数: 36

約数和(自身を含む): 49331880

約数和(自身を除く): 18144729

約数列:

[1, 3, 9, 19, 29, 57, 87, 171, 261, 331, 361, 551, 993, 1083, 1653, 2979, 3249, 4959, 6289, 9599, 10469, 18867, 28797, 31407, 56601, 86391, 94221, 119491, 182381, 358473, 547143, 1075419, 1641429, 3465239, 10395717, 31187151]

約数ペア:

[(1, 31187151), (3, 10395717), (9, 3465239), (19, 1641429), (29, 1075419), (57, 547143), (87, 358473), (171, 182381), (261, 119491), (331, 94221), (361, 86391), (551, 56601), (993, 31407), (1083, 28797), (1653, 18867), (2979, 10469), (3249, 9599), (4959, 6289)]