28169547

素因数分解:

$3^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{20021}}^1$

素因数の和:20098

約数の個数: 16

約数和(自身を含む): 43567872

約数和(自身を除く): 15398325

約数列:

[1, 3, 7, 21, 67, 201, 469, 1407, 20021, 60063, 140147, 420441, 1341407, 4024221, 9389849, 28169547]

約数ペア:

[(1, 28169547), (3, 9389849), (7, 4024221), (21, 1341407), (67, 420441), (201, 140147), (469, 60063), (1407, 20021)]