28439721

素因数分解:

$3^3\times {\mathrm{97}}^1\times {\mathrm{10859}}^1$

素因数の和:10965

約数の個数: 16

約数和(自身を含む): 42571200

約数和(自身を除く): 14131479

約数列:

[1, 3, 9, 27, 97, 291, 873, 2619, 10859, 32577, 97731, 293193, 1053323, 3159969, 9479907, 28439721]

約数ペア:

[(1, 28439721), (3, 9479907), (9, 3159969), (27, 1053323), (97, 293193), (291, 97731), (873, 32577), (2619, 10859)]