18538297648

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{89126431}}^1$

素因数の和:89126452

約数の個数: 20

約数和(自身を含む): 38680871488

約数和(自身を除く): 20142573840

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 89126431, 178252862, 356505724, 713011448, 1158643603, 1426022896, 2317287206, 4634574412, 9269148824, 18538297648]

約数ペア:

[(1, 18538297648), (2, 9269148824), (4, 4634574412), (8, 2317287206), (13, 1426022896), (16, 1158643603), (26, 713011448), (52, 356505724), (104, 178252862), (208, 89126431)]