19814396

素因数分解:

$2^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{9967}}^1$

素因数の和:10049

約数の個数: 24

約数和(自身を含む): 40190976

約数和(自身を除く): 20376580

約数列:

[1, 2, 4, 7, 14, 28, 71, 142, 284, 497, 994, 1988, 9967, 19934, 39868, 69769, 139538, 279076, 707657, 1415314, 2830628, 4953599, 9907198, 19814396]

約数ペア:

[(1, 19814396), (2, 9907198), (4, 4953599), (7, 2830628), (14, 1415314), (28, 707657), (71, 279076), (142, 139538), (284, 69769), (497, 39868), (994, 19934), (1988, 9967)]