140288001

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{351599}}^1$

素因数の和:351628

約数の個数: 16

約数和(自身を含む): 225024000

約数和(自身を除く): 84735999

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 351599, 1054797, 2461193, 6680381, 7383579, 20041143, 46762667, 140288001]

約数ペア:

[(1, 140288001), (3, 46762667), (7, 20041143), (19, 7383579), (21, 6680381), (57, 2461193), (133, 1054797), (399, 351599)]