66991376

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{102121}}^1$

素因数の和:102170

約数の個数: 20

約数和(自身を含む): 132962844

約数和(自身を除く): 65971468

約数列:

[1, 2, 4, 8, 16, 41, 82, 164, 328, 656, 102121, 204242, 408484, 816968, 1633936, 4186961, 8373922, 16747844, 33495688, 66991376]

約数ペア:

[(1, 66991376), (2, 33495688), (4, 16747844), (8, 8373922), (16, 4186961), (41, 1633936), (82, 816968), (164, 408484), (328, 204242), (656, 102121)]