19786984

素因数分解:

$2^3\times 7^3\times {\mathrm{7211}}^1$

素因数の和:7238

約数の個数: 32

約数和(自身を含む): 43272000

約数和(自身を除く): 23485016

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 56, 98, 196, 343, 392, 686, 1372, 2744, 7211, 14422, 28844, 50477, 57688, 100954, 201908, 353339, 403816, 706678, 1413356, 2473373, 2826712, 4946746, 9893492, 19786984]

約数ペア:

[(1, 19786984), (2, 9893492), (4, 4946746), (7, 2826712), (8, 2473373), (14, 1413356), (28, 706678), (49, 403816), (56, 353339), (98, 201908), (196, 100954), (343, 57688), (392, 50477), (686, 28844), (1372, 14422), (2744, 7211)]