18520021

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{1783}}^1$

素因数の和:1860

約数の個数: 16

約数和(自身を含む): 21579264

約数和(自身を除く): 3059243

約数列:

[1, 13, 17, 47, 221, 611, 799, 1783, 10387, 23179, 30311, 83801, 394043, 1089413, 1424617, 18520021]

約数ペア:

[(1, 18520021), (13, 1424617), (17, 1089413), (47, 394043), (221, 83801), (611, 30311), (799, 23179), (1783, 10387)]