18668825

素因数分解:

$5^2\times 7^1\times {\mathrm{107}}^1\times {\mathrm{997}}^1$

素因数の和:1121

約数の個数: 24

約数和(自身を含む): 26730432

約数和(自身を除く): 8061607

約数列:

[1, 5, 7, 25, 35, 107, 175, 535, 749, 997, 2675, 3745, 4985, 6979, 18725, 24925, 34895, 106679, 174475, 533395, 746753, 2666975, 3733765, 18668825]

約数ペア:

[(1, 18668825), (5, 3733765), (7, 2666975), (25, 746753), (35, 533395), (107, 174475), (175, 106679), (535, 34895), (749, 24925), (997, 18725), (2675, 6979), (3745, 4985)]