21797433

素因数分解:

$3^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{11161}}^1$

素因数の和:11205

約数の個数: 24

約数和(自身を含む): 37147136

約数和(自身を除く): 15349703

約数列:

[1, 3, 7, 9, 21, 31, 63, 93, 217, 279, 651, 1953, 11161, 33483, 78127, 100449, 234381, 345991, 703143, 1037973, 2421937, 3113919, 7265811, 21797433]

約数ペア:

[(1, 21797433), (3, 7265811), (7, 3113919), (9, 2421937), (21, 1037973), (31, 703143), (63, 345991), (93, 234381), (217, 100449), (279, 78127), (651, 33483), (1953, 11161)]