640997709

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{1279}}^1\times {\mathrm{15187}}^1$

素因数の和:16480

約数の個数: 16

約数和(自身を含む): 933150720

約数和(自身を除く): 292153011

約数列:

[1, 3, 11, 33, 1279, 3837, 14069, 15187, 42207, 45561, 167057, 501171, 19424173, 58272519, 213665903, 640997709]

約数ペア:

[(1, 640997709), (3, 213665903), (11, 58272519), (33, 19424173), (1279, 501171), (3837, 167057), (14069, 45561), (15187, 42207)]