18490479

素因数分解:

$3^1\times 7^1\times {\mathrm{137}}^1\times {\mathrm{6427}}^1$

素因数の和:6574

約数の個数: 16

約数和(自身を含む): 28386048

約数和(自身を除く): 9895569

約数列:

[1, 3, 7, 21, 137, 411, 959, 2877, 6427, 19281, 44989, 134967, 880499, 2641497, 6163493, 18490479]

約数ペア:

[(1, 18490479), (3, 6163493), (7, 2641497), (21, 880499), (137, 134967), (411, 44989), (959, 19281), (2877, 6427)]