19401811

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{347}}^1$

素因数の和:411

約数の個数: 32

約数和(自身を含む): 25256448

約数和(自身を除く): 5854637

約数列:

[1, 11, 13, 17, 23, 143, 187, 221, 253, 299, 347, 391, 2431, 3289, 3817, 4301, 4511, 5083, 5899, 7981, 49621, 55913, 64889, 76687, 87791, 103753, 135677, 843557, 1141283, 1492447, 1763801, 19401811]

約数ペア:

[(1, 19401811), (11, 1763801), (13, 1492447), (17, 1141283), (23, 843557), (143, 135677), (187, 103753), (221, 87791), (253, 76687), (299, 64889), (347, 55913), (391, 49621), (2431, 7981), (3289, 5899), (3817, 5083), (4301, 4511)]