20725635

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{17}}^2\times {\mathrm{683}}^1$

素因数の和:732

約数の個数: 48

約数和(自身を含む): 40317696

約数和(自身を除く): 19592061

約数列:

[1, 3, 5, 7, 15, 17, 21, 35, 51, 85, 105, 119, 255, 289, 357, 595, 683, 867, 1445, 1785, 2023, 2049, 3415, 4335, 4781, 6069, 10115, 10245, 11611, 14343, 23905, 30345, 34833, 58055, 71715, 81277, 174165, 197387, 243831, 406385, 592161, 986935, 1219155, 1381709, 2960805, 4145127, 6908545, 20725635]

約数ペア:

[(1, 20725635), (3, 6908545), (5, 4145127), (7, 2960805), (15, 1381709), (17, 1219155), (21, 986935), (35, 592161), (51, 406385), (85, 243831), (105, 197387), (119, 174165), (255, 81277), (289, 71715), (357, 58055), (595, 34833), (683, 30345), (867, 23905), (1445, 14343), (1785, 11611), (2023, 10245), (2049, 10115), (3415, 6069), (4335, 4781)]