19942156

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{1327}}^1$

素因数の和:1378

約数の個数: 36

約数和(自身を含む): 39954208

約数和(自身を除く): 20012052

約数列:

[1, 2, 4, 13, 17, 26, 34, 52, 68, 221, 289, 442, 578, 884, 1156, 1327, 2654, 3757, 5308, 7514, 15028, 17251, 22559, 34502, 45118, 69004, 90236, 293267, 383503, 586534, 767006, 1173068, 1534012, 4985539, 9971078, 19942156]

約数ペア:

[(1, 19942156), (2, 9971078), (4, 4985539), (13, 1534012), (17, 1173068), (26, 767006), (34, 586534), (52, 383503), (68, 293267), (221, 90236), (289, 69004), (442, 45118), (578, 34502), (884, 22559), (1156, 17251), (1327, 15028), (2654, 7514), (3757, 5308)]