21530245

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{23027}}^1$

素因数の和:23060

約数の個数: 16

約数和(自身を含む): 29844288

約数和(自身を除く): 8314043

約数列:

[1, 5, 11, 17, 55, 85, 187, 935, 23027, 115135, 253297, 391459, 1266485, 1957295, 4306049, 21530245]

約数ペア:

[(1, 21530245), (5, 4306049), (11, 1957295), (17, 1266485), (55, 391459), (85, 253297), (187, 115135), (935, 23027)]