20209966

素因数分解:

$2^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{137}}^1\times {\mathrm{257}}^1$

素因数の和:444

約数の個数: 32

約数和(自身を含む): 35888832

約数和(自身を除く): 15678866

約数列:

[1, 2, 7, 14, 41, 82, 137, 257, 274, 287, 514, 574, 959, 1799, 1918, 3598, 5617, 10537, 11234, 21074, 35209, 39319, 70418, 73759, 78638, 147518, 246463, 492926, 1443569, 2887138, 10104983, 20209966]

約数ペア:

[(1, 20209966), (2, 10104983), (7, 2887138), (14, 1443569), (41, 492926), (82, 246463), (137, 147518), (257, 78638), (274, 73759), (287, 70418), (514, 39319), (574, 35209), (959, 21074), (1799, 11234), (1918, 10537), (3598, 5617)]