20761125

素因数分解:

$3^1\times 5^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{719}}^1$

素因数の和:755

約数の個数: 64

約数和(自身を含む): 43130880

約数和(自身を除く): 22369755

約数列:

[1, 3, 5, 7, 11, 15, 21, 25, 33, 35, 55, 75, 77, 105, 125, 165, 175, 231, 275, 375, 385, 525, 719, 825, 875, 1155, 1375, 1925, 2157, 2625, 3595, 4125, 5033, 5775, 7909, 9625, 10785, 15099, 17975, 23727, 25165, 28875, 39545, 53925, 55363, 75495, 89875, 118635, 125825, 166089, 197725, 269625, 276815, 377475, 593175, 629125, 830445, 988625, 1384075, 1887375, 2965875, 4152225, 6920375, 20761125]

約数ペア:

[(1, 20761125), (3, 6920375), (5, 4152225), (7, 2965875), (11, 1887375), (15, 1384075), (21, 988625), (25, 830445), (33, 629125), (35, 593175), (55, 377475), (75, 276815), (77, 269625), (105, 197725), (125, 166089), (165, 125825), (175, 118635), (231, 89875), (275, 75495), (375, 55363), (385, 53925), (525, 39545), (719, 28875), (825, 25165), (875, 23727), (1155, 17975), (1375, 15099), (1925, 10785), (2157, 9625), (2625, 7909), (3595, 5775), (4125, 5033)]