21990959918

素因数分解:

$2^1\times {\mathrm{887}}^1\times {\mathrm{2251}}^1\times {\mathrm{5507}}^1$

素因数の和:8647

約数の個数: 16

約数和(自身を含む): 33044298624

約数和(自身を除く): 11053338706

約数列:

[1, 2, 887, 1774, 2251, 4502, 5507, 11014, 1996637, 3993274, 4884709, 9769418, 12396257, 24792514, 10995479959, 21990959918]

約数ペア:

[(1, 21990959918), (2, 10995479959), (887, 24792514), (1774, 12396257), (2251, 9769418), (4502, 4884709), (5507, 3993274), (11014, 1996637)]