19999166

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{79}}^1\times {\mathrm{311}}^1$

素因数の和:440

約数の個数: 32

約数和(自身を含む): 34145280

約数和(自身を除く): 14146114

約数列:

[1, 2, 11, 22, 37, 74, 79, 158, 311, 407, 622, 814, 869, 1738, 2923, 3421, 5846, 6842, 11507, 23014, 24569, 32153, 49138, 64306, 126577, 253154, 270259, 540518, 909053, 1818106, 9999583, 19999166]

約数ペア:

[(1, 19999166), (2, 9999583), (11, 1818106), (22, 909053), (37, 540518), (74, 270259), (79, 253154), (158, 126577), (311, 64306), (407, 49138), (622, 32153), (814, 24569), (869, 23014), (1738, 11507), (2923, 6842), (3421, 5846)]