20161392951

素因数分解:

$3^1\times 7^2\times {\mathrm{71}}^1\times {\mathrm{1931723}}^1$

素因数の和:1931811

約数の個数: 24

約数和(自身を含む): 31711181184

約数和(自身を除く): 11549788233

約数列:

[1, 3, 7, 21, 49, 71, 147, 213, 497, 1491, 3479, 10437, 1931723, 5795169, 13522061, 40566183, 94654427, 137152333, 283963281, 411456999, 960066331, 2880198993, 6720464317, 20161392951]

約数ペア:

[(1, 20161392951), (3, 6720464317), (7, 2880198993), (21, 960066331), (49, 411456999), (71, 283963281), (147, 137152333), (213, 94654427), (497, 40566183), (1491, 13522061), (3479, 5795169), (10437, 1931723)]