19611225

素因数分解:

$3^2\times 5^2\times {\mathrm{43}}^1\times {\mathrm{2027}}^1$

素因数の和:2086

約数の個数: 36

約数和(自身を含む): 35960496

約数和(自身を除く): 16349271

約数列:

[1, 3, 5, 9, 15, 25, 43, 45, 75, 129, 215, 225, 387, 645, 1075, 1935, 2027, 3225, 6081, 9675, 10135, 18243, 30405, 50675, 87161, 91215, 152025, 261483, 435805, 456075, 784449, 1307415, 2179025, 3922245, 6537075, 19611225]

約数ペア:

[(1, 19611225), (3, 6537075), (5, 3922245), (9, 2179025), (15, 1307415), (25, 784449), (43, 456075), (45, 435805), (75, 261483), (129, 152025), (215, 91215), (225, 87161), (387, 50675), (645, 30405), (1075, 18243), (1935, 10135), (2027, 9675), (3225, 6081)]