21975475

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{1783}}^1$

素因数の和:1839

約数の個数: 24

約数和(自身を含む): 29864160

約数和(自身を除く): 7888685

約数列:

[1, 5, 17, 25, 29, 85, 145, 425, 493, 725, 1783, 2465, 8915, 12325, 30311, 44575, 51707, 151555, 258535, 757775, 879019, 1292675, 4395095, 21975475]

約数ペア:

[(1, 21975475), (5, 4395095), (17, 1292675), (25, 879019), (29, 757775), (85, 258535), (145, 151555), (425, 51707), (493, 44575), (725, 30311), (1783, 12325), (2465, 8915)]