18988277

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{12979}}^1$

素因数の和:13016

約数の個数: 16

約数和(自身を含む): 24921600

約数和(自身を除く): 5933323

約数列:

[1, 7, 11, 19, 77, 133, 209, 1463, 12979, 90853, 142769, 246601, 999383, 1726207, 2712611, 18988277]

約数ペア:

[(1, 18988277), (7, 2712611), (11, 1726207), (19, 999383), (77, 246601), (133, 142769), (209, 90853), (1463, 12979)]