18505209

素因数分解:

$3^1\times {\mathrm{139}}^1\times {\mathrm{199}}^1\times {\mathrm{223}}^1$

素因数の和:564

約数の個数: 16

約数和(自身を含む): 25088000

約数和(自身を除く): 6582791

約数列:

[1, 3, 139, 199, 223, 417, 597, 669, 27661, 30997, 44377, 82983, 92991, 133131, 6168403, 18505209]

約数ペア:

[(1, 18505209), (3, 6168403), (139, 133131), (199, 92991), (223, 82983), (417, 44377), (597, 30997), (669, 27661)]