20443688

素因数分解:

$2^3\times {\mathrm{23}}^1\times {\mathrm{137}}^1\times {\mathrm{811}}^1$

素因数の和:977

約数の個数: 32

約数和(自身を含む): 40340160

約数和(自身を除く): 19896472

約数列:

[1, 2, 4, 8, 23, 46, 92, 137, 184, 274, 548, 811, 1096, 1622, 3151, 3244, 6302, 6488, 12604, 18653, 25208, 37306, 74612, 111107, 149224, 222214, 444428, 888856, 2555461, 5110922, 10221844, 20443688]

約数ペア:

[(1, 20443688), (2, 10221844), (4, 5110922), (8, 2555461), (23, 888856), (46, 444428), (92, 222214), (137, 149224), (184, 111107), (274, 74612), (548, 37306), (811, 25208), (1096, 18653), (1622, 12604), (3151, 6488), (3244, 6302)]