21060543

素因数分解:

$3^1\times 7^3\times {\mathrm{97}}^1\times {\mathrm{211}}^1$

素因数の和:332

約数の個数: 32

約数和(自身を含む): 33241600

約数和(自身を除く): 12181057

約数列:

[1, 3, 7, 21, 49, 97, 147, 211, 291, 343, 633, 679, 1029, 1477, 2037, 4431, 4753, 10339, 14259, 20467, 31017, 33271, 61401, 72373, 99813, 143269, 217119, 429807, 1002883, 3008649, 7020181, 21060543]

約数ペア:

[(1, 21060543), (3, 7020181), (7, 3008649), (21, 1002883), (49, 429807), (97, 217119), (147, 143269), (211, 99813), (291, 72373), (343, 61401), (633, 33271), (679, 31017), (1029, 20467), (1477, 14259), (2037, 10339), (4431, 4753)]