42721047

素因数分解:

$3^3\times {\mathrm{811}}^1\times {\mathrm{1951}}^1$

素因数の和:2771

約数の個数: 16

約数和(自身を含む): 63400960

約数和(自身を除く): 20679913

約数列:

[1, 3, 9, 27, 811, 1951, 2433, 5853, 7299, 17559, 21897, 52677, 1582261, 4746783, 14240349, 42721047]

約数ペア:

[(1, 42721047), (3, 14240349), (9, 4746783), (27, 1582261), (811, 52677), (1951, 21897), (2433, 17559), (5853, 7299)]