2047759

素因数分解:

$7^2\times {\mathrm{23}}^2\times {\mathrm{79}}^1$

素因数の和:139

約数の個数: 18

約数和(自身を含む): 2521680

約数和(自身を除く): 473921

約数列:

[1, 7, 23, 49, 79, 161, 529, 553, 1127, 1817, 3703, 3871, 12719, 25921, 41791, 89033, 292537, 2047759]

約数ペア:

[(1, 2047759), (7, 292537), (23, 89033), (49, 41791), (79, 25921), (161, 12719), (529, 3871), (553, 3703), (1127, 1817)]