19998992

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{96149}}^1$

素因数の和:96170

約数の個数: 20

約数和(自身を含む): 41729100

約数和(自身を除く): 21730108

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 96149, 192298, 384596, 769192, 1249937, 1538384, 2499874, 4999748, 9999496, 19998992]

約数ペア:

[(1, 19998992), (2, 9999496), (4, 4999748), (8, 2499874), (13, 1538384), (16, 1249937), (26, 769192), (52, 384596), (104, 192298), (208, 96149)]