19964078

素因数分解:

$2^1\times {\mathrm{103}}^1\times {\mathrm{199}}^1\times {\mathrm{487}}^1$

素因数の和:791

約数の個数: 16

約数和(自身を含む): 30451200

約数和(自身を除く): 10487122

約数列:

[1, 2, 103, 199, 206, 398, 487, 974, 20497, 40994, 50161, 96913, 100322, 193826, 9982039, 19964078]

約数ペア:

[(1, 19964078), (2, 9982039), (103, 193826), (199, 100322), (206, 96913), (398, 50161), (487, 40994), (974, 20497)]