21260152

素因数分解:

$2^3\times {\mathrm{643}}^1\times {\mathrm{4133}}^1$

素因数の和:4782

約数の個数: 16

約数和(自身を含む): 39934440

約数和(自身を除く): 18674288

約数列:

[1, 2, 4, 8, 643, 1286, 2572, 4133, 5144, 8266, 16532, 33064, 2657519, 5315038, 10630076, 21260152]

約数ペア:

[(1, 21260152), (2, 10630076), (4, 5315038), (8, 2657519), (643, 33064), (1286, 16532), (2572, 8266), (4133, 5144)]