1234788891

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{3094709}}^1$

素因数の和:3094738

約数の個数: 16

約数和(自身を含む): 1980614400

約数和(自身を除く): 745825509

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 3094709, 9284127, 21662963, 58799471, 64988889, 176398413, 411596297, 1234788891]

約数ペア:

[(1, 1234788891), (3, 411596297), (7, 176398413), (19, 64988889), (21, 58799471), (57, 21662963), (133, 9284127), (399, 3094709)]