20457723

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{1109}}^1$

素因数の和:1179

約数の個数: 32

約数和(自身を含む): 32820480

約数和(自身を除く): 12362757

約数列:

[1, 3, 11, 13, 33, 39, 43, 129, 143, 429, 473, 559, 1109, 1419, 1677, 3327, 6149, 12199, 14417, 18447, 36597, 43251, 47687, 143061, 158587, 475761, 524557, 619931, 1573671, 1859793, 6819241, 20457723]

約数ペア:

[(1, 20457723), (3, 6819241), (11, 1859793), (13, 1573671), (33, 619931), (39, 524557), (43, 475761), (129, 158587), (143, 143061), (429, 47687), (473, 43251), (559, 36597), (1109, 18447), (1419, 14417), (1677, 12199), (3327, 6149)]