20397918

素因数分解:

$2^1\times 3^1\times {\mathrm{23}}^1\times {\mathrm{147811}}^1$

素因数の和:147839

約数の個数: 16

約数和(自身を含む): 42569856

約数和(自身を除く): 22171938

約数列:

[1, 2, 3, 6, 23, 46, 69, 138, 147811, 295622, 443433, 886866, 3399653, 6799306, 10198959, 20397918]

約数ペア:

[(1, 20397918), (2, 10198959), (3, 6799306), (6, 3399653), (23, 886866), (46, 443433), (69, 295622), (138, 147811)]