19459990

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{9311}}^1$

素因数の和:9348

約数の個数: 32

約数和(自身を含む): 40227840

約数和(自身を除く): 20767850

約数列:

[1, 2, 5, 10, 11, 19, 22, 38, 55, 95, 110, 190, 209, 418, 1045, 2090, 9311, 18622, 46555, 93110, 102421, 176909, 204842, 353818, 512105, 884545, 1024210, 1769090, 1945999, 3891998, 9729995, 19459990]

約数ペア:

[(1, 19459990), (2, 9729995), (5, 3891998), (10, 1945999), (11, 1769090), (19, 1024210), (22, 884545), (38, 512105), (55, 353818), (95, 204842), (110, 176909), (190, 102421), (209, 93110), (418, 46555), (1045, 18622), (2090, 9311)]