21462020

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{56479}}^1$

素因数の和:56507

約数の個数: 24

約数和(自身を含む): 47443200

約数和(自身を除く): 25981180

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 56479, 112958, 225916, 282395, 564790, 1073101, 1129580, 2146202, 4292404, 5365505, 10731010, 21462020]

約数ペア:

[(1, 21462020), (2, 10731010), (4, 5365505), (5, 4292404), (10, 2146202), (19, 1129580), (20, 1073101), (38, 564790), (76, 282395), (95, 225916), (190, 112958), (380, 56479)]