21977776784

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{679669}}^1$

素因数の和:679767

約数の個数: 40

約数和(自身を含む): 44499354240

約数和(自身を除く): 22521577456

約数列:

[1, 2, 4, 8, 16, 43, 47, 86, 94, 172, 188, 344, 376, 688, 752, 2021, 4042, 8084, 16168, 32336, 679669, 1359338, 2718676, 5437352, 10874704, 29225767, 31944443, 58451534, 63888886, 116903068, 127777772, 233806136, 255555544, 467612272, 511111088, 1373611049, 2747222098, 5494444196, 10988888392, 21977776784]

約数ペア:

[(1, 21977776784), (2, 10988888392), (4, 5494444196), (8, 2747222098), (16, 1373611049), (43, 511111088), (47, 467612272), (86, 255555544), (94, 233806136), (172, 127777772), (188, 116903068), (344, 63888886), (376, 58451534), (688, 31944443), (752, 29225767), (2021, 10874704), (4042, 5437352), (8084, 2718676), (16168, 1359338), (32336, 679669)]