21404075

素因数分解:

$5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{11119}}^1$

素因数の和:11147

約数の個数: 24

約数和(自身を含む): 33093120

約数和(自身を除く): 11689045

約数列:

[1, 5, 7, 11, 25, 35, 55, 77, 175, 275, 385, 1925, 11119, 55595, 77833, 122309, 277975, 389165, 611545, 856163, 1945825, 3057725, 4280815, 21404075]

約数ペア:

[(1, 21404075), (5, 4280815), (7, 3057725), (11, 1945825), (25, 856163), (35, 611545), (55, 389165), (77, 277975), (175, 122309), (275, 77833), (385, 55595), (1925, 11119)]