19885723

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{563}}^1$

素因数の和:619

約数の個数: 24

約数和(自身を含む): 24770880

約数和(自身を除く): 4885157

約数列:

[1, 11, 13, 19, 143, 169, 209, 247, 563, 1859, 2717, 3211, 6193, 7319, 10697, 35321, 80509, 95147, 117667, 139061, 1046617, 1529671, 1807793, 19885723]

約数ペア:

[(1, 19885723), (11, 1807793), (13, 1529671), (19, 1046617), (143, 139061), (169, 117667), (209, 95147), (247, 80509), (563, 35321), (1859, 10697), (2717, 7319), (3211, 6193)]