18184789

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{179}}^1\times {\mathrm{631}}^1$

素因数の和:840

約数の個数: 16

約数和(自身を含む): 21841920

約数和(自身を除く): 3657131

約数列:

[1, 7, 23, 161, 179, 631, 1253, 4117, 4417, 14513, 28819, 101591, 112949, 790643, 2597827, 18184789]

約数ペア:

[(1, 18184789), (7, 2597827), (23, 790643), (161, 112949), (179, 101591), (631, 28819), (1253, 14513), (4117, 4417)]