28085127

素因数分解:

$3^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{19961}}^1$

素因数の和:20038

約数の個数: 16

約数和(自身を含む): 43437312

約数和(自身を除く): 15352185

約数列:

[1, 3, 7, 21, 67, 201, 469, 1407, 19961, 59883, 139727, 419181, 1337387, 4012161, 9361709, 28085127]

約数ペア:

[(1, 28085127), (3, 9361709), (7, 4012161), (21, 1337387), (67, 419181), (201, 139727), (469, 59883), (1407, 19961)]