1840391

素因数分解:

$7^2\times {\mathrm{23}}^2\times {\mathrm{71}}^1$

素因数の和:131

約数の個数: 18

約数和(自身を含む): 2269512

約数和(自身を除く): 429121

約数列:

[1, 7, 23, 49, 71, 161, 497, 529, 1127, 1633, 3479, 3703, 11431, 25921, 37559, 80017, 262913, 1840391]

約数ペア:

[(1, 1840391), (7, 262913), (23, 80017), (49, 37559), (71, 25921), (161, 11431), (497, 3703), (529, 3479), (1127, 1633)]