257441187

素因数分解:

$3^1\times {\mathrm{103}}^1\times {\mathrm{181}}^1\times {\mathrm{4603}}^1$

素因数の和:4890

約数の個数: 16

約数和(自身を含む): 348578048

約数和(自身を除く): 91136861

約数列:

[1, 3, 103, 181, 309, 543, 4603, 13809, 18643, 55929, 474109, 833143, 1422327, 2499429, 85813729, 257441187]

約数ペア:

[(1, 257441187), (3, 85813729), (103, 2499429), (181, 1422327), (309, 833143), (543, 474109), (4603, 55929), (13809, 18643)]