28138779

素因数分解:

$3^3\times {\mathrm{359}}^1\times {\mathrm{2903}}^1$

素因数の和:3271

約数の個数: 16

約数和(自身を含む): 41817600

約数和(自身を除く): 13678821

約数列:

[1, 3, 9, 27, 359, 1077, 2903, 3231, 8709, 9693, 26127, 78381, 1042177, 3126531, 9379593, 28138779]

約数ペア:

[(1, 28138779), (3, 9379593), (9, 3126531), (27, 1042177), (359, 78381), (1077, 26127), (2903, 9693), (3231, 8709)]