20585216

素因数分解:

$2^8\times {\mathrm{191}}^1\times {\mathrm{421}}^1$

素因数の和:628

約数の個数: 36

約数和(自身を含む): 41403264

約数和(自身を除く): 20818048

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 191, 256, 382, 421, 764, 842, 1528, 1684, 3056, 3368, 6112, 6736, 12224, 13472, 24448, 26944, 48896, 53888, 80411, 107776, 160822, 321644, 643288, 1286576, 2573152, 5146304, 10292608, 20585216]

約数ペア:

[(1, 20585216), (2, 10292608), (4, 5146304), (8, 2573152), (16, 1286576), (32, 643288), (64, 321644), (128, 160822), (191, 107776), (256, 80411), (382, 53888), (421, 48896), (764, 26944), (842, 24448), (1528, 13472), (1684, 12224), (3056, 6736), (3368, 6112)]