19864718

素因数分解:

$2^1\times {\mathrm{53}}^1\times {\mathrm{193}}^1\times {\mathrm{971}}^1$

素因数の和:1219

約数の個数: 16

約数和(自身を含む): 30548016

約数和(自身を除く): 10683298

約数列:

[1, 2, 53, 106, 193, 386, 971, 1942, 10229, 20458, 51463, 102926, 187403, 374806, 9932359, 19864718]

約数ペア:

[(1, 19864718), (2, 9932359), (53, 374806), (106, 187403), (193, 102926), (386, 51463), (971, 20458), (1942, 10229)]