20667325

素因数分解:

$5^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{6947}}^1$

素因数の和:6981

約数の個数: 24

約数和(自身を含む): 31015872

約数和(自身を除く): 10348547

約数列:

[1, 5, 7, 17, 25, 35, 85, 119, 175, 425, 595, 2975, 6947, 34735, 48629, 118099, 173675, 243145, 590495, 826693, 1215725, 2952475, 4133465, 20667325]

約数ペア:

[(1, 20667325), (5, 4133465), (7, 2952475), (17, 1215725), (25, 826693), (35, 590495), (85, 243145), (119, 173675), (175, 118099), (425, 48629), (595, 34735), (2975, 6947)]