19714509

素因数分解:

$3^4\times {\mathrm{17}}^1\times {\mathrm{103}}^1\times {\mathrm{139}}^1$

素因数の和:271

約数の個数: 40

約数和(自身を含む): 31711680

約数和(自身を除く): 11997171

約数列:

[1, 3, 9, 17, 27, 51, 81, 103, 139, 153, 309, 417, 459, 927, 1251, 1377, 1751, 2363, 2781, 3753, 5253, 7089, 8343, 11259, 14317, 15759, 21267, 42951, 47277, 63801, 128853, 141831, 191403, 243389, 386559, 730167, 1159677, 2190501, 6571503, 19714509]

約数ペア:

[(1, 19714509), (3, 6571503), (9, 2190501), (17, 1159677), (27, 730167), (51, 386559), (81, 243389), (103, 191403), (139, 141831), (153, 128853), (309, 63801), (417, 47277), (459, 42951), (927, 21267), (1251, 15759), (1377, 14317), (1751, 11259), (2363, 8343), (2781, 7089), (3753, 5253)]