20514725

素因数分解:

$5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{10657}}^1$

素因数の和:10685

約数の個数: 24

約数和(自身を含む): 31718208

約数和(自身を除く): 11203483

約数列:

[1, 5, 7, 11, 25, 35, 55, 77, 175, 275, 385, 1925, 10657, 53285, 74599, 117227, 266425, 372995, 586135, 820589, 1864975, 2930675, 4102945, 20514725]

約数ペア:

[(1, 20514725), (5, 4102945), (7, 2930675), (11, 1864975), (25, 820589), (35, 586135), (55, 372995), (77, 266425), (175, 117227), (275, 74599), (385, 53285), (1925, 10657)]