81605718

素因数分解:

$2^1\times 3^{10}\times {\mathrm{691}}^1$

素因数の和:723

約数の個数: 44

約数和(自身を含む): 183877548

約数和(自身を除く): 102271830

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 81, 162, 243, 486, 691, 729, 1382, 1458, 2073, 2187, 4146, 4374, 6219, 6561, 12438, 13122, 18657, 19683, 37314, 39366, 55971, 59049, 111942, 118098, 167913, 335826, 503739, 1007478, 1511217, 3022434, 4533651, 9067302, 13600953, 27201906, 40802859, 81605718]

約数ペア:

[(1, 81605718), (2, 40802859), (3, 27201906), (6, 13600953), (9, 9067302), (18, 4533651), (27, 3022434), (54, 1511217), (81, 1007478), (162, 503739), (243, 335826), (486, 167913), (691, 118098), (729, 111942), (1382, 59049), (1458, 55971), (2073, 39366), (2187, 37314), (4146, 19683), (4374, 18657), (6219, 13122), (6561, 12438)]