18935739

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{5381}}^1$

素因数の和:5427

約数の個数: 24

約数和(自身を含む): 30225312

約数和(自身を除く): 11289573

約数列:

[1, 3, 9, 17, 23, 51, 69, 153, 207, 391, 1173, 3519, 5381, 16143, 48429, 91477, 123763, 274431, 371289, 823293, 1113867, 2103971, 6311913, 18935739]

約数ペア:

[(1, 18935739), (3, 6311913), (9, 2103971), (17, 1113867), (23, 823293), (51, 371289), (69, 274431), (153, 123763), (207, 91477), (391, 48429), (1173, 16143), (3519, 5381)]