21392774

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{151}}^1\times {\mathrm{5449}}^1$

素因数の和:5615

約数の個数: 16

約数和(自身を含む): 34792800

約数和(自身を除く): 13400026

約数列:

[1, 2, 13, 26, 151, 302, 1963, 3926, 5449, 10898, 70837, 141674, 822799, 1645598, 10696387, 21392774]

約数ペア:

[(1, 21392774), (2, 10696387), (13, 1645598), (26, 822799), (151, 141674), (302, 70837), (1963, 10898), (3926, 5449)]