81805779

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{971}}^1$

素因数の和:1048

約数の個数: 48

約数和(自身を含む): 138288384

約数和(自身を除く): 56482605

約数列:

[1, 3, 9, 11, 23, 33, 37, 69, 99, 111, 207, 253, 333, 407, 759, 851, 971, 1221, 2277, 2553, 2913, 3663, 7659, 8739, 9361, 10681, 22333, 28083, 32043, 35927, 66999, 84249, 96129, 107781, 200997, 245663, 323343, 395197, 736989, 826321, 1185591, 2210967, 2478963, 3556773, 7436889, 9089531, 27268593, 81805779]

約数ペア:

[(1, 81805779), (3, 27268593), (9, 9089531), (11, 7436889), (23, 3556773), (33, 2478963), (37, 2210967), (69, 1185591), (99, 826321), (111, 736989), (207, 395197), (253, 323343), (333, 245663), (407, 200997), (759, 107781), (851, 96129), (971, 84249), (1221, 66999), (2277, 35927), (2553, 32043), (2913, 28083), (3663, 22333), (7659, 10681), (8739, 9361)]