81215982

素因数分解:

$2^1\times 3^2\times {\mathrm{641}}^1\times {\mathrm{7039}}^1$

素因数の和:7688

約数の個数: 24

約数和(自身を含む): 176267520

約数和(自身を除く): 95051538

約数列:

[1, 2, 3, 6, 9, 18, 641, 1282, 1923, 3846, 5769, 7039, 11538, 14078, 21117, 42234, 63351, 126702, 4511999, 9023998, 13535997, 27071994, 40607991, 81215982]

約数ペア:

[(1, 81215982), (2, 40607991), (3, 27071994), (6, 13535997), (9, 9023998), (18, 4511999), (641, 126702), (1282, 63351), (1923, 42234), (3846, 21117), (5769, 14078), (7039, 11538)]