18660986

素因数分解:

$2^1\times {\mathrm{41}}^1\times {\mathrm{89}}^1\times {\mathrm{2557}}^1$

素因数の和:2689

約数の個数: 16

約数和(自身を含む): 29007720

約数和(自身を除く): 10346734

約数列:

[1, 2, 41, 82, 89, 178, 2557, 3649, 5114, 7298, 104837, 209674, 227573, 455146, 9330493, 18660986]

約数ペア:

[(1, 18660986), (2, 9330493), (41, 455146), (82, 227573), (89, 209674), (178, 104837), (2557, 7298), (3649, 5114)]