21018214

素因数分解:

$2^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{51769}}^1$

素因数の和:51807

約数の個数: 16

約数和(自身を含む): 37274400

約数和(自身を除く): 16256186

約数列:

[1, 2, 7, 14, 29, 58, 203, 406, 51769, 103538, 362383, 724766, 1501301, 3002602, 10509107, 21018214]

約数ペア:

[(1, 21018214), (2, 10509107), (7, 3002602), (14, 1501301), (29, 724766), (58, 362383), (203, 103538), (406, 51769)]