28504791

素因数分解:

$3^4\times 7^1\times {\mathrm{50273}}^1$

素因数の和:50292

約数の個数: 20

約数和(自身を含む): 48665232

約数和(自身を除く): 20160441

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 50273, 150819, 351911, 452457, 1055733, 1357371, 3167199, 4072113, 9501597, 28504791]

約数ペア:

[(1, 28504791), (3, 9501597), (7, 4072113), (9, 3167199), (21, 1357371), (27, 1055733), (63, 452457), (81, 351911), (189, 150819), (567, 50273)]