18991687

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{2251}}^1$

素因数の和:2334

約数の個数: 16

約数和(自身を含む): 22700160

約数和(自身を除く): 3708473

約数列:

[1, 11, 13, 59, 143, 649, 767, 2251, 8437, 24761, 29263, 132809, 321893, 1460899, 1726517, 18991687]

約数ペア:

[(1, 18991687), (11, 1726517), (13, 1460899), (59, 321893), (143, 132809), (649, 29263), (767, 24761), (2251, 8437)]