21191778

素因数分解:

$2^1\times 3^2\times {\mathrm{107}}^1\times {\mathrm{11003}}^1$

素因数の和:11118

約数の個数: 24

約数和(自身を含む): 46348848

約数和(自身を除く): 25157070

約数列:

[1, 2, 3, 6, 9, 18, 107, 214, 321, 642, 963, 1926, 11003, 22006, 33009, 66018, 99027, 198054, 1177321, 2354642, 3531963, 7063926, 10595889, 21191778]

約数ペア:

[(1, 21191778), (2, 10595889), (3, 7063926), (6, 3531963), (9, 2354642), (18, 1177321), (107, 198054), (214, 99027), (321, 66018), (642, 33009), (963, 22006), (1926, 11003)]