81291321

素因数分解:

$3^2\times {\mathrm{29}}^1\times {\mathrm{59}}^1\times {\mathrm{5279}}^1$

素因数の和:5373

約数の個数: 24

約数和(自身を含む): 123552000

約数和(自身を除く): 42260679

約数列:

[1, 3, 9, 29, 59, 87, 177, 261, 531, 1711, 5133, 5279, 15399, 15837, 47511, 153091, 311461, 459273, 934383, 1377819, 2803149, 9032369, 27097107, 81291321]

約数ペア:

[(1, 81291321), (3, 27097107), (9, 9032369), (29, 2803149), (59, 1377819), (87, 934383), (177, 459273), (261, 311461), (531, 153091), (1711, 47511), (5133, 15837), (5279, 15399)]