21321953

素因数分解:

${\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{83}}^1\times {\mathrm{131}}^1$

素因数の和:304

約数の個数: 16

約数和(自身を含む): 22752576

約数和(自身を除く): 1430623

約数列:

[1, 37, 53, 83, 131, 1961, 3071, 4399, 4847, 6943, 10873, 162763, 256891, 402301, 576269, 21321953]

約数ペア:

[(1, 21321953), (37, 576269), (53, 402301), (83, 256891), (131, 162763), (1961, 10873), (3071, 6943), (4399, 4847)]