81017679

素因数分解:

$3^1\times {\mathrm{37}}^1\times {\mathrm{59}}^1\times {\mathrm{89}}^1\times {\mathrm{139}}^1$

素因数の和:327

約数の個数: 32

約数和(自身を含む): 114912000

約数和(自身を除く): 33894321

約数列:

[1, 3, 37, 59, 89, 111, 139, 177, 267, 417, 2183, 3293, 5143, 5251, 6549, 8201, 9879, 12371, 15429, 15753, 24603, 37113, 194287, 303437, 457727, 582861, 729889, 910311, 1373181, 2189667, 27005893, 81017679]

約数ペア:

[(1, 81017679), (3, 27005893), (37, 2189667), (59, 1373181), (89, 910311), (111, 729889), (139, 582861), (177, 457727), (267, 303437), (417, 194287), (2183, 37113), (3293, 24603), (5143, 15753), (5251, 15429), (6549, 12371), (8201, 9879)]