28278579

素因数分解:

$3^1\times 7^1\times {\mathrm{271}}^1\times {\mathrm{4969}}^1$

素因数の和:5250

約数の個数: 16

約数和(自身を含む): 43258880

約数和(自身を除く): 14980301

約数列:

[1, 3, 7, 21, 271, 813, 1897, 4969, 5691, 14907, 34783, 104349, 1346599, 4039797, 9426193, 28278579]

約数ペア:

[(1, 28278579), (3, 9426193), (7, 4039797), (21, 1346599), (271, 104349), (813, 34783), (1897, 14907), (4969, 5691)]