19876724

素因数分解:

$2^2\times 7^1\times {\mathrm{353}}^1\times {\mathrm{2011}}^1$

素因数の和:2375

約数の個数: 24

約数和(自身を含む): 39885888

約数和(自身を除く): 20009164

約数列:

[1, 2, 4, 7, 14, 28, 353, 706, 1412, 2011, 2471, 4022, 4942, 8044, 9884, 14077, 28154, 56308, 709883, 1419766, 2839532, 4969181, 9938362, 19876724]

約数ペア:

[(1, 19876724), (2, 9938362), (4, 4969181), (7, 2839532), (14, 1419766), (28, 709883), (353, 56308), (706, 28154), (1412, 14077), (2011, 9884), (2471, 8044), (4022, 4942)]