18791428

素因数分解:

$2^2\times {\mathrm{71}}^1\times {\mathrm{127}}^1\times {\mathrm{521}}^1$

素因数の和:723

約数の個数: 24

約数和(自身を含む): 33675264

約数和(自身を除く): 14883836

約数列:

[1, 2, 4, 71, 127, 142, 254, 284, 508, 521, 1042, 2084, 9017, 18034, 36068, 36991, 66167, 73982, 132334, 147964, 264668, 4697857, 9395714, 18791428]

約数ペア:

[(1, 18791428), (2, 9395714), (4, 4697857), (71, 264668), (127, 147964), (142, 132334), (254, 73982), (284, 66167), (508, 36991), (521, 36068), (1042, 18034), (2084, 9017)]