217902013

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{691}}^1\times {\mathrm{2371}}^1$

素因数の和:3088

約数の個数: 16

約数和(自身を含む): 262627840

約数和(自身を除く): 44725827

約数列:

[1, 7, 19, 133, 691, 2371, 4837, 13129, 16597, 45049, 91903, 315343, 1638361, 11468527, 31128859, 217902013]

約数ペア:

[(1, 217902013), (7, 31128859), (19, 11468527), (133, 1638361), (691, 315343), (2371, 91903), (4837, 45049), (13129, 16597)]