21022970

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{72493}}^1$

素因数の和:72529

約数の個数: 16

約数和(自身を含む): 39146760

約数和(自身を除く): 18123790

約数列:

[1, 2, 5, 10, 29, 58, 145, 290, 72493, 144986, 362465, 724930, 2102297, 4204594, 10511485, 21022970]

約数ペア:

[(1, 21022970), (2, 10511485), (5, 4204594), (10, 2102297), (29, 724930), (58, 362465), (145, 144986), (290, 72493)]