201991191

素因数分解:

$3^1\times {\mathrm{61}}^1\times {\mathrm{863}}^1\times {\mathrm{1279}}^1$

素因数の和:2206

約数の個数: 16

約数和(自身を含む): 274268160

約数和(自身を除く): 72276969

約数列:

[1, 3, 61, 183, 863, 1279, 2589, 3837, 52643, 78019, 157929, 234057, 1103777, 3311331, 67330397, 201991191]

約数ペア:

[(1, 201991191), (3, 67330397), (61, 3311331), (183, 1103777), (863, 234057), (1279, 157929), (2589, 78019), (3837, 52643)]