257918679

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{1049}}^1\times {\mathrm{1607}}^1$

素因数の和:2679

約数の個数: 24

約数和(自身を含む): 395085600

約数和(自身を除く): 137166921

約数列:

[1, 3, 9, 17, 51, 153, 1049, 1607, 3147, 4821, 9441, 14463, 17833, 27319, 53499, 81957, 160497, 245871, 1685743, 5057229, 15171687, 28657631, 85972893, 257918679]

約数ペア:

[(1, 257918679), (3, 85972893), (9, 28657631), (17, 15171687), (51, 5057229), (153, 1685743), (1049, 245871), (1607, 160497), (3147, 81957), (4821, 53499), (9441, 27319), (14463, 17833)]