21291238

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{227}}^1\times {\mathrm{2039}}^1$

素因数の和:2291

約数の個数: 16

約数和(自身を含む): 33488640

約数和(自身を除く): 12197402

約数列:

[1, 2, 23, 46, 227, 454, 2039, 4078, 5221, 10442, 46897, 93794, 462853, 925706, 10645619, 21291238]

約数ペア:

[(1, 21291238), (2, 10645619), (23, 925706), (46, 462853), (227, 93794), (454, 46897), (2039, 10442), (4078, 5221)]