28158969

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{457}}^1$

素因数の和:549

約数の個数: 32

約数和(自身を含む): 42209280

約数和(自身を除く): 14050311

約数列:

[1, 3, 19, 23, 47, 57, 69, 141, 437, 457, 893, 1081, 1311, 1371, 2679, 3243, 8683, 10511, 20539, 21479, 26049, 31533, 61617, 64437, 199709, 408101, 494017, 599127, 1224303, 1482051, 9386323, 28158969]

約数ペア:

[(1, 28158969), (3, 9386323), (19, 1482051), (23, 1224303), (47, 599127), (57, 494017), (69, 408101), (141, 199709), (437, 64437), (457, 61617), (893, 31533), (1081, 26049), (1311, 21479), (1371, 20539), (2679, 10511), (3243, 8683)]