221276913

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{30341}}^1$

素因数の和:30385

約数の個数: 32

約数和(自身を含む): 367016832

約数和(自身を除く): 145739919

約数列:

[1, 3, 11, 13, 17, 33, 39, 51, 143, 187, 221, 429, 561, 663, 2431, 7293, 30341, 91023, 333751, 394433, 515797, 1001253, 1183299, 1547391, 4338763, 5673767, 6705361, 13016289, 17021301, 20116083, 73758971, 221276913]

約数ペア:

[(1, 221276913), (3, 73758971), (11, 20116083), (13, 17021301), (17, 13016289), (33, 6705361), (39, 5673767), (51, 4338763), (143, 1547391), (187, 1183299), (221, 1001253), (429, 515797), (561, 394433), (663, 333751), (2431, 91023), (7293, 30341)]