81519782

素因数分解:

$2^1\times {\mathrm{113}}^1\times {\mathrm{197}}^1\times {\mathrm{1831}}^1$

素因数の和:2143

約数の個数: 16

約数和(自身を含む): 124055712

約数和(自身を除く): 42535930

約数列:

[1, 2, 113, 197, 226, 394, 1831, 3662, 22261, 44522, 206903, 360707, 413806, 721414, 40759891, 81519782]

約数ペア:

[(1, 81519782), (2, 40759891), (113, 721414), (197, 413806), (226, 360707), (394, 206903), (1831, 44522), (3662, 22261)]