17999878

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{439}}^1$

素因数の和:556

約数の個数: 32

約数和(自身を含む): 31046400

約数和(自身を除く): 13046522

約数列:

[1, 2, 13, 19, 26, 38, 83, 166, 247, 439, 494, 878, 1079, 1577, 2158, 3154, 5707, 8341, 11414, 16682, 20501, 36437, 41002, 72874, 108433, 216866, 473681, 692303, 947362, 1384606, 8999939, 17999878]

約数ペア:

[(1, 17999878), (2, 8999939), (13, 1384606), (19, 947362), (26, 692303), (38, 473681), (83, 216866), (166, 108433), (247, 72874), (439, 41002), (494, 36437), (878, 20501), (1079, 16682), (1577, 11414), (2158, 8341), (3154, 5707)]