21000307105

素因数分解:

$5^1\times {\mathrm{43}}^1\times {\mathrm{739}}^1\times {\mathrm{132173}}^1$

素因数の和:132960

約数の個数: 16

約数和(自身を含む): 25821512640

約数和(自身を除く): 4821205535

約数列:

[1, 5, 43, 215, 739, 3695, 31777, 132173, 158885, 660865, 5683439, 28417195, 97675847, 488379235, 4200061421, 21000307105]

約数ペア:

[(1, 21000307105), (5, 4200061421), (43, 488379235), (215, 97675847), (739, 28417195), (3695, 5683439), (31777, 660865), (132173, 158885)]