19665178

素因数分解:

$2^1\times {\mathrm{13}}^2\times {\mathrm{73}}^1\times {\mathrm{797}}^1$

素因数の和:898

約数の個数: 24

約数和(自身を含む): 32419548

約数和(自身を除く): 12754370

約数列:

[1, 2, 13, 26, 73, 146, 169, 338, 797, 949, 1594, 1898, 10361, 12337, 20722, 24674, 58181, 116362, 134693, 269386, 756353, 1512706, 9832589, 19665178]

約数ペア:

[(1, 19665178), (2, 9832589), (13, 1512706), (26, 756353), (73, 269386), (146, 134693), (169, 116362), (338, 58181), (797, 24674), (949, 20722), (1594, 12337), (1898, 10361)]