21951610

素因数分解:

$2^1\times 5^1\times {\mathrm{449}}^1\times {\mathrm{4889}}^1$

素因数の和:5345

約数の個数: 16

約数和(自身を含む): 39609000

約数和(自身を除く): 17657390

約数列:

[1, 2, 5, 10, 449, 898, 2245, 4490, 4889, 9778, 24445, 48890, 2195161, 4390322, 10975805, 21951610]

約数ペア:

[(1, 21951610), (2, 10975805), (5, 4390322), (10, 2195161), (449, 48890), (898, 24445), (2245, 9778), (4490, 4889)]