20878912

素因数分解:

$2^6\times {\mathrm{139}}^1\times {\mathrm{2347}}^1$

素因数の和:2498

約数の個数: 28

約数和(自身を含む): 41747440

約数和(自身を除く): 20868528

約数列:

[1, 2, 4, 8, 16, 32, 64, 139, 278, 556, 1112, 2224, 2347, 4448, 4694, 8896, 9388, 18776, 37552, 75104, 150208, 326233, 652466, 1304932, 2609864, 5219728, 10439456, 20878912]

約数ペア:

[(1, 20878912), (2, 10439456), (4, 5219728), (8, 2609864), (16, 1304932), (32, 652466), (64, 326233), (139, 150208), (278, 75104), (556, 37552), (1112, 18776), (2224, 9388), (2347, 8896), (4448, 4694)]