18734258

素因数分解:

$2^1\times {\mathrm{103}}^1\times {\mathrm{199}}^1\times {\mathrm{457}}^1$

素因数の和:761

約数の個数: 16

約数和(自身を含む): 28579200

約数和(自身を除く): 9844942

約数列:

[1, 2, 103, 199, 206, 398, 457, 914, 20497, 40994, 47071, 90943, 94142, 181886, 9367129, 18734258]

約数ペア:

[(1, 18734258), (2, 9367129), (103, 181886), (199, 94142), (206, 90943), (398, 47071), (457, 40994), (914, 20497)]