20514732

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{139}}^1\times {\mathrm{251}}^1$

素因数の和:411

約数の個数: 72

約数和(自身を含む): 56306880

約数和(自身を除く): 35792148

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 49, 84, 98, 139, 147, 196, 251, 278, 294, 417, 502, 556, 588, 753, 834, 973, 1004, 1506, 1668, 1757, 1946, 2919, 3012, 3514, 3892, 5271, 5838, 6811, 7028, 10542, 11676, 12299, 13622, 20433, 21084, 24598, 27244, 34889, 36897, 40866, 49196, 69778, 73794, 81732, 104667, 139556, 147588, 209334, 244223, 418668, 488446, 732669, 976892, 1465338, 1709561, 2930676, 3419122, 5128683, 6838244, 10257366, 20514732]

約数ペア:

[(1, 20514732), (2, 10257366), (3, 6838244), (4, 5128683), (6, 3419122), (7, 2930676), (12, 1709561), (14, 1465338), (21, 976892), (28, 732669), (42, 488446), (49, 418668), (84, 244223), (98, 209334), (139, 147588), (147, 139556), (196, 104667), (251, 81732), (278, 73794), (294, 69778), (417, 49196), (502, 40866), (556, 36897), (588, 34889), (753, 27244), (834, 24598), (973, 21084), (1004, 20433), (1506, 13622), (1668, 12299), (1757, 11676), (1946, 10542), (2919, 7028), (3012, 6811), (3514, 5838), (3892, 5271)]