217874951

素因数分解:

$7^1\times {\mathrm{199}}^1\times {\mathrm{229}}^1\times {\mathrm{683}}^1$

素因数の和:1118

約数の個数: 16

約数和(自身を含む): 251712000

約数和(自身を除く): 33837049

約数列:

[1, 7, 199, 229, 683, 1393, 1603, 4781, 45571, 135917, 156407, 318997, 951419, 1094849, 31124993, 217874951]

約数ペア:

[(1, 217874951), (7, 31124993), (199, 1094849), (229, 951419), (683, 318997), (1393, 156407), (1603, 135917), (4781, 45571)]