20805712

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{41947}}^1$

素因数の和:41986

約数の個数: 20

約数和(自身を含む): 41612416

約数和(自身を除く): 20806704

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 41947, 83894, 167788, 335576, 671152, 1300357, 2600714, 5201428, 10402856, 20805712]

約数ペア:

[(1, 20805712), (2, 10402856), (4, 5201428), (8, 2600714), (16, 1300357), (31, 671152), (62, 335576), (124, 167788), (248, 83894), (496, 41947)]