87688557

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{37}}^2\times {\mathrm{647}}^1$

素因数の和:738

約数の個数: 36

約数和(自身を含む): 142230816

約数和(自身を除く): 54542259

約数列:

[1, 3, 9, 11, 33, 37, 99, 111, 333, 407, 647, 1221, 1369, 1941, 3663, 4107, 5823, 7117, 12321, 15059, 21351, 23939, 45177, 64053, 71817, 135531, 215451, 263329, 789987, 885743, 2369961, 2657229, 7971687, 9743173, 29229519, 87688557]

約数ペア:

[(1, 87688557), (3, 29229519), (9, 9743173), (11, 7971687), (33, 2657229), (37, 2369961), (99, 885743), (111, 789987), (333, 263329), (407, 215451), (647, 135531), (1221, 71817), (1369, 64053), (1941, 45177), (3663, 23939), (4107, 21351), (5823, 15059), (7117, 12321)]