28264239

素因数分解:

$3^2\times {\mathrm{83}}^1\times {\mathrm{157}}^1\times {\mathrm{241}}^1$

素因数の和:487

約数の個数: 24

約数和(自身を含む): 41753712

約数和(自身を除く): 13489473

約数列:

[1, 3, 9, 83, 157, 241, 249, 471, 723, 747, 1413, 2169, 13031, 20003, 37837, 39093, 60009, 113511, 117279, 180027, 340533, 3140471, 9421413, 28264239]

約数ペア:

[(1, 28264239), (3, 9421413), (9, 3140471), (83, 340533), (157, 180027), (241, 117279), (249, 113511), (471, 60009), (723, 39093), (747, 37837), (1413, 20003), (2169, 13031)]