18938959

素因数分解:

${\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{97}}^1\times {\mathrm{653}}^1$

素因数の和:786

約数の個数: 16

約数和(自身を含む): 21534912

約数和(自身を除く): 2595953

約数列:

[1, 13, 23, 97, 299, 653, 1261, 2231, 8489, 15019, 29003, 63341, 195247, 823433, 1456843, 18938959]

約数ペア:

[(1, 18938959), (13, 1456843), (23, 823433), (97, 195247), (299, 63341), (653, 29003), (1261, 15019), (2231, 8489)]