21225416

素因数分解:

$2^3\times {\mathrm{103}}^1\times {\mathrm{25759}}^1$

素因数の和:25868

約数の個数: 16

約数和(自身を含む): 40185600

約数和(自身を除く): 18960184

約数列:

[1, 2, 4, 8, 103, 206, 412, 824, 25759, 51518, 103036, 206072, 2653177, 5306354, 10612708, 21225416]

約数ペア:

[(1, 21225416), (2, 10612708), (4, 5306354), (8, 2653177), (103, 206072), (206, 103036), (412, 51518), (824, 25759)]