20993725

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{1051}}^1$

素因数の和:1125

約数の個数: 24

約数和(自身を含む): 28176768

約数和(自身を除く): 7183043

約数列:

[1, 5, 17, 25, 47, 85, 235, 425, 799, 1051, 1175, 3995, 5255, 17867, 19975, 26275, 49397, 89335, 246985, 446675, 839749, 1234925, 4198745, 20993725]

約数ペア:

[(1, 20993725), (5, 4198745), (17, 1234925), (25, 839749), (47, 446675), (85, 246985), (235, 89335), (425, 49397), (799, 26275), (1051, 19975), (1175, 17867), (3995, 5255)]