28702359

素因数分解:

$3^2\times 7^1\times {\mathrm{73}}^1\times {\mathrm{79}}^2$

素因数の和:244

約数の個数: 36

約数和(自身を含む): 48646416

約数和(自身を除く): 19944057

約数列:

[1, 3, 7, 9, 21, 63, 73, 79, 219, 237, 511, 553, 657, 711, 1533, 1659, 4599, 4977, 5767, 6241, 17301, 18723, 40369, 43687, 51903, 56169, 121107, 131061, 363321, 393183, 455593, 1366779, 3189151, 4100337, 9567453, 28702359]

約数ペア:

[(1, 28702359), (3, 9567453), (7, 4100337), (9, 3189151), (21, 1366779), (63, 455593), (73, 393183), (79, 363321), (219, 131061), (237, 121107), (511, 56169), (553, 51903), (657, 43687), (711, 40369), (1533, 18723), (1659, 17301), (4599, 6241), (4977, 5767)]