21619495

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{4799}}^1$

素因数の和:4874

約数の個数: 16

約数和(自身を含む): 27993600

約数和(自身を除く): 6374105

約数列:

[1, 5, 17, 53, 85, 265, 901, 4505, 4799, 23995, 81583, 254347, 407915, 1271735, 4323899, 21619495]

約数ペア:

[(1, 21619495), (5, 4323899), (17, 1271735), (53, 407915), (85, 254347), (265, 81583), (901, 23995), (4505, 4799)]