21319363

素因数分解:

${\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{127}}^1\times {\mathrm{349}}^1$

素因数の和:526

約数の個数: 16

約数和(自身を含む): 23833600

約数和(自身を除く): 2514237

約数列:

[1, 13, 37, 127, 349, 481, 1651, 4537, 4699, 12913, 44323, 61087, 167869, 576199, 1639951, 21319363]

約数ペア:

[(1, 21319363), (13, 1639951), (37, 576199), (127, 167869), (349, 61087), (481, 44323), (1651, 12913), (4537, 4699)]