20914916

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{443}}^1$

素因数の和:524

約数の個数: 48

約数和(自身を含む): 42517440

約数和(自身を除く): 21602524

約数列:

[1, 2, 4, 11, 22, 29, 37, 44, 58, 74, 116, 148, 319, 407, 443, 638, 814, 886, 1073, 1276, 1628, 1772, 2146, 4292, 4873, 9746, 11803, 12847, 16391, 19492, 23606, 25694, 32782, 47212, 51388, 65564, 141317, 180301, 282634, 360602, 475339, 565268, 721204, 950678, 1901356, 5228729, 10457458, 20914916]

約数ペア:

[(1, 20914916), (2, 10457458), (4, 5228729), (11, 1901356), (22, 950678), (29, 721204), (37, 565268), (44, 475339), (58, 360602), (74, 282634), (116, 180301), (148, 141317), (319, 65564), (407, 51388), (443, 47212), (638, 32782), (814, 25694), (886, 23606), (1073, 19492), (1276, 16391), (1628, 12847), (1772, 11803), (2146, 9746), (4292, 4873)]