251180919

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{9721}}^1$

素因数の和:9773

約数の個数: 40

約数和(自身を含む): 423490320

約数和(自身を除く): 172309401

約数列:

[1, 3, 9, 11, 27, 29, 33, 81, 87, 99, 261, 297, 319, 783, 891, 957, 2349, 2871, 8613, 9721, 25839, 29163, 87489, 106931, 262467, 281909, 320793, 787401, 845727, 962379, 2537181, 2887137, 3100999, 7611543, 8661411, 9302997, 22834629, 27908991, 83726973, 251180919]

約数ペア:

[(1, 251180919), (3, 83726973), (9, 27908991), (11, 22834629), (27, 9302997), (29, 8661411), (33, 7611543), (81, 3100999), (87, 2887137), (99, 2537181), (261, 962379), (297, 845727), (319, 787401), (783, 320793), (891, 281909), (957, 262467), (2349, 106931), (2871, 87489), (8613, 29163), (9721, 25839)]