21248925

素因数分解:

$3^1\times 5^2\times {\mathrm{449}}^1\times {\mathrm{631}}^1$

素因数の和:1093

約数の個数: 24

約数和(自身を含む): 35265600

約数和(自身を除く): 14016675

約数列:

[1, 3, 5, 15, 25, 75, 449, 631, 1347, 1893, 2245, 3155, 6735, 9465, 11225, 15775, 33675, 47325, 283319, 849957, 1416595, 4249785, 7082975, 21248925]

約数ペア:

[(1, 21248925), (3, 7082975), (5, 4249785), (15, 1416595), (25, 849957), (75, 283319), (449, 47325), (631, 33675), (1347, 15775), (1893, 11225), (2245, 9465), (3155, 6735)]