19997656

素因数分解:

$2^3\times 7^1\times {\mathrm{103}}^1\times {\mathrm{3467}}^1$

素因数の和:3583

約数の個数: 32

約数和(自身を含む): 43280640

約数和(自身を除く): 23282984

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 103, 206, 412, 721, 824, 1442, 2884, 3467, 5768, 6934, 13868, 24269, 27736, 48538, 97076, 194152, 357101, 714202, 1428404, 2499707, 2856808, 4999414, 9998828, 19997656]

約数ペア:

[(1, 19997656), (2, 9998828), (4, 4999414), (7, 2856808), (8, 2499707), (14, 1428404), (28, 714202), (56, 357101), (103, 194152), (206, 97076), (412, 48538), (721, 27736), (824, 24269), (1442, 13868), (2884, 6934), (3467, 5768)]