18784406

素因数分解:

$2^1\times {\mathrm{109}}^1\times {\mathrm{199}}^1\times {\mathrm{433}}^1$

素因数の和:743

約数の個数: 16

約数和(自身を含む): 28644000

約数和(自身を除く): 9859594

約数列:

[1, 2, 109, 199, 218, 398, 433, 866, 21691, 43382, 47197, 86167, 94394, 172334, 9392203, 18784406]

約数ペア:

[(1, 18784406), (2, 9392203), (109, 172334), (199, 94394), (218, 86167), (398, 47197), (433, 43382), (866, 21691)]