19742975

素因数分解:

$5^2\times 7^1\times {\mathrm{101}}^1\times {\mathrm{1117}}^1$

素因数の和:1235

約数の個数: 24

約数和(自身を含む): 28280928

約数和(自身を除く): 8537953

約数列:

[1, 5, 7, 25, 35, 101, 175, 505, 707, 1117, 2525, 3535, 5585, 7819, 17675, 27925, 39095, 112817, 195475, 564085, 789719, 2820425, 3948595, 19742975]

約数ペア:

[(1, 19742975), (5, 3948595), (7, 2820425), (25, 789719), (35, 564085), (101, 195475), (175, 112817), (505, 39095), (707, 27925), (1117, 17675), (2525, 7819), (3535, 5585)]