20741468

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{613}}^1\times {\mathrm{769}}^1$

素因数の和:1397

約数の個数: 24

約数和(自身を含む): 39713520

約数和(自身を除く): 18972052

約数列:

[1, 2, 4, 11, 22, 44, 613, 769, 1226, 1538, 2452, 3076, 6743, 8459, 13486, 16918, 26972, 33836, 471397, 942794, 1885588, 5185367, 10370734, 20741468]

約数ペア:

[(1, 20741468), (2, 10370734), (4, 5185367), (11, 1885588), (22, 942794), (44, 471397), (613, 33836), (769, 26972), (1226, 16918), (1538, 13486), (2452, 8459), (3076, 6743)]