21750580

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{37501}}^1$

素因数の和:37539

約数の個数: 24

約数和(自身を含む): 47252520

約数和(自身を除く): 25501940

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290, 580, 37501, 75002, 150004, 187505, 375010, 750020, 1087529, 2175058, 4350116, 5437645, 10875290, 21750580]

約数ペア:

[(1, 21750580), (2, 10875290), (4, 5437645), (5, 4350116), (10, 2175058), (20, 1087529), (29, 750020), (58, 375010), (116, 187505), (145, 150004), (290, 75002), (580, 37501)]