21725031

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{397}}^1$

素因数の和:483

約数の個数: 32

約数和(自身を含む): 32667840

約数和(自身を除く): 10942809

約数列:

[1, 3, 17, 29, 37, 51, 87, 111, 397, 493, 629, 1073, 1191, 1479, 1887, 3219, 6749, 11513, 14689, 18241, 20247, 34539, 44067, 54723, 195721, 249713, 425981, 587163, 749139, 1277943, 7241677, 21725031]

約数ペア:

[(1, 21725031), (3, 7241677), (17, 1277943), (29, 749139), (37, 587163), (51, 425981), (87, 249713), (111, 195721), (397, 54723), (493, 44067), (629, 34539), (1073, 20247), (1191, 18241), (1479, 14689), (1887, 11513), (3219, 6749)]