21420075

素因数分解:

$3^1\times 5^2\times {\mathrm{89}}^1\times {\mathrm{3209}}^1$

素因数の和:3311

約数の個数: 24

約数和(自身を含む): 35823600

約数和(自身を除く): 14403525

約数列:

[1, 3, 5, 15, 25, 75, 89, 267, 445, 1335, 2225, 3209, 6675, 9627, 16045, 48135, 80225, 240675, 285601, 856803, 1428005, 4284015, 7140025, 21420075]

約数ペア:

[(1, 21420075), (3, 7140025), (5, 4284015), (15, 1428005), (25, 856803), (75, 285601), (89, 240675), (267, 80225), (445, 48135), (1335, 16045), (2225, 9627), (3209, 6675)]