19886825

素因数分解:

$5^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{5981}}^1$

素因数の和:6017

約数の個数: 24

約数和(自身を含む): 29670720

約数和(自身を除く): 9783895

約数列:

[1, 5, 7, 19, 25, 35, 95, 133, 175, 475, 665, 3325, 5981, 29905, 41867, 113639, 149525, 209335, 568195, 795473, 1046675, 2840975, 3977365, 19886825]

約数ペア:

[(1, 19886825), (5, 3977365), (7, 2840975), (19, 1046675), (25, 795473), (35, 568195), (95, 209335), (133, 149525), (175, 113639), (475, 41867), (665, 29905), (3325, 5981)]