28697641

素因数分解:

$7^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{1423}}^1$

素因数の和:1540

約数の個数: 16

約数和(自身を含む): 34084864

約数和(自身を除く): 5387223

約数列:

[1, 7, 43, 67, 301, 469, 1423, 2881, 9961, 20167, 61189, 95341, 428323, 667387, 4099663, 28697641]

約数ペア:

[(1, 28697641), (7, 4099663), (43, 667387), (67, 428323), (301, 95341), (469, 61189), (1423, 20167), (2881, 9961)]