20913564

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{248971}}^1$

素因数の和:248985

約数の個数: 24

約数和(自身を含む): 55769728

約数和(自身を除く): 34856164

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 248971, 497942, 746913, 995884, 1493826, 1742797, 2987652, 3485594, 5228391, 6971188, 10456782, 20913564]

約数ペア:

[(1, 20913564), (2, 10456782), (3, 6971188), (4, 5228391), (6, 3485594), (7, 2987652), (12, 1742797), (14, 1493826), (21, 995884), (28, 746913), (42, 497942), (84, 248971)]