18734786

素因数分解:

$2^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{127}}^1\times {\mathrm{257}}^1$

素因数の和:434

約数の個数: 32

約数和(自身を含む): 33288192

約数和(自身を除く): 14553406

約数列:

[1, 2, 7, 14, 41, 82, 127, 254, 257, 287, 514, 574, 889, 1778, 1799, 3598, 5207, 10414, 10537, 21074, 32639, 36449, 65278, 72898, 73759, 147518, 228473, 456946, 1338199, 2676398, 9367393, 18734786]

約数ペア:

[(1, 18734786), (2, 9367393), (7, 2676398), (14, 1338199), (41, 456946), (82, 228473), (127, 147518), (254, 73759), (257, 72898), (287, 65278), (514, 36449), (574, 32639), (889, 21074), (1778, 10537), (1799, 10414), (3598, 5207)]