19391750399

素因数分解:

$7^1\times {\mathrm{53}}^1\times {\mathrm{131}}^1\times {\mathrm{191}}^1\times {\mathrm{2089}}^1$

素因数の和:2471

約数の個数: 32

約数和(自身を含む): 22882590720

約数和(自身を除く): 3490840321

約数列:

[1, 7, 53, 131, 191, 371, 917, 1337, 2089, 6943, 10123, 14623, 25021, 48601, 70861, 110717, 175147, 273659, 398999, 775019, 1326113, 1915613, 2792993, 9282791, 14503927, 21146947, 52268869, 101527489, 148028629, 365882083, 2770250057, 19391750399]

約数ペア:

[(1, 19391750399), (7, 2770250057), (53, 365882083), (131, 148028629), (191, 101527489), (371, 52268869), (917, 21146947), (1337, 14503927), (2089, 9282791), (6943, 2792993), (10123, 1915613), (14623, 1326113), (25021, 775019), (48601, 398999), (70861, 273659), (110717, 175147)]