31118227

素因数分解:

$7^1\times {\mathrm{89}}^1\times {\mathrm{199}}^1\times {\mathrm{251}}^1$

素因数の和:546

約数の個数: 16

約数和(自身を含む): 36288000

約数和(自身を除く): 5169773

約数列:

[1, 7, 89, 199, 251, 623, 1393, 1757, 17711, 22339, 49949, 123977, 156373, 349643, 4445461, 31118227]

約数ペア:

[(1, 31118227), (7, 4445461), (89, 349643), (199, 156373), (251, 123977), (623, 49949), (1393, 22339), (1757, 17711)]