20689502

素因数分解:

$2^1\times {\mathrm{41}}^1\times {\mathrm{191}}^1\times {\mathrm{1321}}^1$

素因数の和:1555

約数の個数: 16

約数和(自身を含む): 31981824

約数和(自身を除く): 11292322

約数列:

[1, 2, 41, 82, 191, 382, 1321, 2642, 7831, 15662, 54161, 108322, 252311, 504622, 10344751, 20689502]

約数ペア:

[(1, 20689502), (2, 10344751), (41, 504622), (82, 252311), (191, 108322), (382, 54161), (1321, 15662), (2642, 7831)]