21492029

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{1231}}^1$

素因数の和:1340

約数の個数: 16

約数和(自身を含む): 24837120

約数和(自身を除く): 3345091

約数列:

[1, 13, 17, 79, 221, 1027, 1231, 1343, 16003, 17459, 20927, 97249, 272051, 1264237, 1653233, 21492029]

約数ペア:

[(1, 21492029), (13, 1653233), (17, 1264237), (79, 272051), (221, 97249), (1027, 20927), (1231, 17459), (1343, 16003)]