28420903

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{2203}}^1$

素因数の和:2326

約数の個数: 16

約数和(自身を含む): 34558720

約数和(自身を除く): 6137817

約数列:

[1, 7, 19, 97, 133, 679, 1843, 2203, 12901, 15421, 41857, 213691, 292999, 1495837, 4060129, 28420903]

約数ペア:

[(1, 28420903), (7, 4060129), (19, 1495837), (97, 292999), (133, 213691), (679, 41857), (1843, 15421), (2203, 12901)]