991567347

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{997}}^1\times {\mathrm{19501}}^1$

素因数の和:20518

約数の個数: 16

約数和(自身を含む): 1401335712

約数和(自身を除く): 409768365

約数列:

[1, 3, 17, 51, 997, 2991, 16949, 19501, 50847, 58503, 331517, 994551, 19442497, 58327491, 330522449, 991567347]

約数ペア:

[(1, 991567347), (3, 330522449), (17, 58327491), (51, 19442497), (997, 994551), (2991, 331517), (16949, 58503), (19501, 50847)]