42778773

素因数分解:

$3^4\times {\mathrm{211}}^1\times {\mathrm{2503}}^1$

素因数の和:2726

約数の個数: 20

約数和(自身を含む): 64232608

約数和(自身を除く): 21453835

約数列:

[1, 3, 9, 27, 81, 211, 633, 1899, 2503, 5697, 7509, 17091, 22527, 67581, 202743, 528133, 1584399, 4753197, 14259591, 42778773]

約数ペア:

[(1, 42778773), (3, 14259591), (9, 4753197), (27, 1584399), (81, 528133), (211, 202743), (633, 67581), (1899, 22527), (2503, 17091), (5697, 7509)]