19886713

素因数分解:

$7^1\times {\mathrm{11}}^2\times {\mathrm{53}}^1\times {\mathrm{443}}^1$

素因数の和:525

約数の個数: 24

約数和(自身を含む): 25510464

約数和(自身を除く): 5623751

約数列:

[1, 7, 11, 53, 77, 121, 371, 443, 583, 847, 3101, 4081, 4873, 6413, 23479, 34111, 44891, 53603, 164353, 258269, 375221, 1807883, 2840959, 19886713]

約数ペア:

[(1, 19886713), (7, 2840959), (11, 1807883), (53, 375221), (77, 258269), (121, 164353), (371, 53603), (443, 44891), (583, 34111), (847, 23479), (3101, 6413), (4081, 4873)]