2891619

素因数分解:

$3^4\times {\mathrm{29}}^1\times {\mathrm{1231}}^1$

素因数の和:1272

約数の個数: 20

約数和(自身を含む): 4472160

約数和(自身を除く): 1580541

約数列:

[1, 3, 9, 27, 29, 81, 87, 261, 783, 1231, 2349, 3693, 11079, 33237, 35699, 99711, 107097, 321291, 963873, 2891619]

約数ペア:

[(1, 2891619), (3, 963873), (9, 321291), (27, 107097), (29, 99711), (81, 35699), (87, 33237), (261, 11079), (783, 3693), (1231, 2349)]