21149025

素因数分解:

$3^1\times 5^2\times {\mathrm{419}}^1\times {\mathrm{673}}^1$

素因数の和:1105

約数の個数: 24

約数和(自身を含む): 35101920

約数和(自身を除く): 13952895

約数列:

[1, 3, 5, 15, 25, 75, 419, 673, 1257, 2019, 2095, 3365, 6285, 10095, 10475, 16825, 31425, 50475, 281987, 845961, 1409935, 4229805, 7049675, 21149025]

約数ペア:

[(1, 21149025), (3, 7049675), (5, 4229805), (15, 1409935), (25, 845961), (75, 281987), (419, 50475), (673, 31425), (1257, 16825), (2019, 10475), (2095, 10095), (3365, 6285)]