18213811

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{5501}}^1$

素因数の和:5562

約数の個数: 16

約数和(自身を含む): 23240448

約数和(自身を除く): 5026637

約数列:

[1, 7, 11, 43, 77, 301, 473, 3311, 5501, 38507, 60511, 236543, 423577, 1655801, 2601973, 18213811]

約数ペア:

[(1, 18213811), (7, 2601973), (11, 1655801), (43, 423577), (77, 236543), (301, 60511), (473, 38507), (3311, 5501)]