20759928

素因数分解:

$2^3\times 3^1\times 7^2\times {\mathrm{127}}^1\times {\mathrm{139}}^1$

素因数の和:289

約数の個数: 96

約数和(自身を含む): 61286400

約数和(自身を除く): 40526472

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 49, 56, 84, 98, 127, 139, 147, 168, 196, 254, 278, 294, 381, 392, 417, 508, 556, 588, 762, 834, 889, 973, 1016, 1112, 1176, 1524, 1668, 1778, 1946, 2667, 2919, 3048, 3336, 3556, 3892, 5334, 5838, 6223, 6811, 7112, 7784, 10668, 11676, 12446, 13622, 17653, 18669, 20433, 21336, 23352, 24892, 27244, 35306, 37338, 40866, 49784, 52959, 54488, 70612, 74676, 81732, 105918, 123571, 141224, 149352, 163464, 211836, 247142, 370713, 423672, 494284, 741426, 864997, 988568, 1482852, 1729994, 2594991, 2965704, 3459988, 5189982, 6919976, 10379964, 20759928]

約数ペア:

[(1, 20759928), (2, 10379964), (3, 6919976), (4, 5189982), (6, 3459988), (7, 2965704), (8, 2594991), (12, 1729994), (14, 1482852), (21, 988568), (24, 864997), (28, 741426), (42, 494284), (49, 423672), (56, 370713), (84, 247142), (98, 211836), (127, 163464), (139, 149352), (147, 141224), (168, 123571), (196, 105918), (254, 81732), (278, 74676), (294, 70612), (381, 54488), (392, 52959), (417, 49784), (508, 40866), (556, 37338), (588, 35306), (762, 27244), (834, 24892), (889, 23352), (973, 21336), (1016, 20433), (1112, 18669), (1176, 17653), (1524, 13622), (1668, 12446), (1778, 11676), (1946, 10668), (2667, 7784), (2919, 7112), (3048, 6811), (3336, 6223), (3556, 5838), (3892, 5334)]