21300513

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{151}}^1\times {\mathrm{3617}}^1$

素因数の和:3784

約数の個数: 16

約数和(自身を含む): 30796416

約数和(自身を除く): 9495903

約数列:

[1, 3, 13, 39, 151, 453, 1963, 3617, 5889, 10851, 47021, 141063, 546167, 1638501, 7100171, 21300513]

約数ペア:

[(1, 21300513), (3, 7100171), (13, 1638501), (39, 546167), (151, 141063), (453, 47021), (1963, 10851), (3617, 5889)]