81020541

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{251}}^1\times {\mathrm{809}}^1$

素因数の和:1089

約数の個数: 32

約数和(自身を含む): 130636800

約数和(自身を除く): 49616259

約数列:

[1, 3, 7, 19, 21, 57, 133, 251, 399, 753, 809, 1757, 2427, 4769, 5271, 5663, 14307, 15371, 16989, 33383, 46113, 100149, 107597, 203059, 322791, 609177, 1421413, 3858121, 4264239, 11574363, 27006847, 81020541]

約数ペア:

[(1, 81020541), (3, 27006847), (7, 11574363), (19, 4264239), (21, 3858121), (57, 1421413), (133, 609177), (251, 322791), (399, 203059), (753, 107597), (809, 100149), (1757, 46113), (2427, 33383), (4769, 16989), (5271, 15371), (5663, 14307)]