18979533

素因数分解:

$3^2\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{1153}}^1$

素因数の和:1249

約数の個数: 24

約数和(自身を含む): 28803840

約数和(自身を除く): 9824307

約数列:

[1, 3, 9, 31, 59, 93, 177, 279, 531, 1153, 1829, 3459, 5487, 10377, 16461, 35743, 68027, 107229, 204081, 321687, 612243, 2108837, 6326511, 18979533]

約数ペア:

[(1, 18979533), (3, 6326511), (9, 2108837), (31, 612243), (59, 321687), (93, 204081), (177, 107229), (279, 68027), (531, 35743), (1153, 16461), (1829, 10377), (3459, 5487)]