20929753

素因数分解:

${\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{821}}^1$

素因数の和:924

約数の個数: 16

約数和(自身を含む): 23614416

約数和(自身を除く): 2684663

約数列:

[1, 13, 37, 53, 481, 689, 821, 1961, 10673, 25493, 30377, 43513, 394901, 565669, 1609981, 20929753]

約数ペア:

[(1, 20929753), (13, 1609981), (37, 565669), (53, 394901), (481, 43513), (689, 30377), (821, 25493), (1961, 10673)]