19801826

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{523}}^1\times {\mathrm{1721}}^1$

素因数の和:2257

約数の個数: 16

約数和(自身を含む): 32483808

約数和(自身を除く): 12681982

約数列:

[1, 2, 11, 22, 523, 1046, 1721, 3442, 5753, 11506, 18931, 37862, 900083, 1800166, 9900913, 19801826]

約数ペア:

[(1, 19801826), (2, 9900913), (11, 1800166), (22, 900083), (523, 37862), (1046, 18931), (1721, 11506), (3442, 5753)]