20161031891

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{1291}}^1\times {\mathrm{15601}}^1$

素因数の和:16923

約数の個数: 32

約数和(自身を含む): 27092061696

約数和(自身を除く): 6931029805

約数列:

[1, 7, 11, 13, 77, 91, 143, 1001, 1291, 9037, 14201, 15601, 16783, 99407, 109207, 117481, 171611, 184613, 202813, 1201277, 1292291, 1419691, 2230943, 15616601, 20140891, 140986237, 221549801, 261831583, 1550848607, 1832821081, 2880147413, 20161031891]

約数ペア:

[(1, 20161031891), (7, 2880147413), (11, 1832821081), (13, 1550848607), (77, 261831583), (91, 221549801), (143, 140986237), (1001, 20140891), (1291, 15616601), (9037, 2230943), (14201, 1419691), (15601, 1292291), (16783, 1201277), (99407, 202813), (109207, 184613), (117481, 171611)]