217243922

素因数分解:

$2^1\times 7^1\times {\mathrm{199}}^1\times {\mathrm{77977}}^1$

素因数の和:78185

約数の個数: 16

約数和(自身を含む): 374294400

約数和(自身を除く): 157050478

約数列:

[1, 2, 7, 14, 199, 398, 1393, 2786, 77977, 155954, 545839, 1091678, 15517423, 31034846, 108621961, 217243922]

約数ペア:

[(1, 217243922), (2, 108621961), (7, 31034846), (14, 15517423), (199, 1091678), (398, 545839), (1393, 155954), (2786, 77977)]