20770519

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{107}}^1\times {\mathrm{2521}}^1$

素因数の和:2646

約数の個数: 16

約数和(自身を含む): 26148096

約数和(自身を除く): 5377577

約数列:

[1, 7, 11, 77, 107, 749, 1177, 2521, 8239, 17647, 27731, 194117, 269747, 1888229, 2967217, 20770519]

約数ペア:

[(1, 20770519), (7, 2967217), (11, 1888229), (77, 269747), (107, 194117), (749, 27731), (1177, 17647), (2521, 8239)]