21050953

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{8819}}^1$

素因数の和:8868

約数の個数: 16

約数和(自身を含む): 27095040

約数和(自身を除く): 6044087

約数列:

[1, 7, 11, 31, 77, 217, 341, 2387, 8819, 61733, 97009, 273389, 679063, 1913723, 3007279, 21050953]

約数ペア:

[(1, 21050953), (7, 3007279), (11, 1913723), (31, 679063), (77, 273389), (217, 97009), (341, 61733), (2387, 8819)]