21095716

素因数分解:

$2^2\times {\mathrm{127}}^1\times {\mathrm{131}}^1\times {\mathrm{317}}^1$

素因数の和:579

約数の個数: 24

約数和(自身を含む): 37610496

約数和(自身を除く): 16514780

約数列:

[1, 2, 4, 127, 131, 254, 262, 317, 508, 524, 634, 1268, 16637, 33274, 40259, 41527, 66548, 80518, 83054, 161036, 166108, 5273929, 10547858, 21095716]

約数ペア:

[(1, 21095716), (2, 10547858), (4, 5273929), (127, 166108), (131, 161036), (254, 83054), (262, 80518), (317, 66548), (508, 41527), (524, 40259), (634, 33274), (1268, 16637)]