20851668

素因数分解:

$2^2\times 3^4\times {\mathrm{139}}^1\times {\mathrm{463}}^1$

素因数の和:618

約数の個数: 60

約数和(自身を含む): 55021120

約数和(自身を除く): 34169452

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 81, 108, 139, 162, 278, 324, 417, 463, 556, 834, 926, 1251, 1389, 1668, 1852, 2502, 2778, 3753, 4167, 5004, 5556, 7506, 8334, 11259, 12501, 15012, 16668, 22518, 25002, 37503, 45036, 50004, 64357, 75006, 128714, 150012, 193071, 257428, 386142, 579213, 772284, 1158426, 1737639, 2316852, 3475278, 5212917, 6950556, 10425834, 20851668]

約数ペア:

[(1, 20851668), (2, 10425834), (3, 6950556), (4, 5212917), (6, 3475278), (9, 2316852), (12, 1737639), (18, 1158426), (27, 772284), (36, 579213), (54, 386142), (81, 257428), (108, 193071), (139, 150012), (162, 128714), (278, 75006), (324, 64357), (417, 50004), (463, 45036), (556, 37503), (834, 25002), (926, 22518), (1251, 16668), (1389, 15012), (1668, 12501), (1852, 11259), (2502, 8334), (2778, 7506), (3753, 5556), (4167, 5004)]