20981576

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{34061}}^1$

素因数の和:34085

約数の個数: 32

約数和(自身を含む): 49049280

約数和(自身を除く): 28067704

約数列:

[1, 2, 4, 7, 8, 11, 14, 22, 28, 44, 56, 77, 88, 154, 308, 616, 34061, 68122, 136244, 238427, 272488, 374671, 476854, 749342, 953708, 1498684, 1907416, 2622697, 2997368, 5245394, 10490788, 20981576]

約数ペア:

[(1, 20981576), (2, 10490788), (4, 5245394), (7, 2997368), (8, 2622697), (11, 1907416), (14, 1498684), (22, 953708), (28, 749342), (44, 476854), (56, 374671), (77, 272488), (88, 238427), (154, 136244), (308, 68122), (616, 34061)]