20617725

素因数分解:

$3^1\times 5^2\times {\mathrm{47}}^1\times {\mathrm{5849}}^1$

素因数の和:5909

約数の個数: 24

約数和(自身を含む): 34819200

約数和(自身を除く): 14201475

約数列:

[1, 3, 5, 15, 25, 47, 75, 141, 235, 705, 1175, 3525, 5849, 17547, 29245, 87735, 146225, 274903, 438675, 824709, 1374515, 4123545, 6872575, 20617725]

約数ペア:

[(1, 20617725), (3, 6872575), (5, 4123545), (15, 1374515), (25, 824709), (47, 438675), (75, 274903), (141, 146225), (235, 87735), (705, 29245), (1175, 17547), (3525, 5849)]