19810476

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{127}}^1\times {\mathrm{619}}^1$

素因数の和:763

約数の個数: 72

約数和(自身を含む): 57774080

約数和(自身を除く): 37963604

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 127, 252, 254, 381, 508, 619, 762, 889, 1143, 1238, 1524, 1778, 1857, 2286, 2476, 2667, 3556, 3714, 4333, 4572, 5334, 5571, 7428, 8001, 8666, 10668, 11142, 12999, 16002, 17332, 22284, 25998, 32004, 38997, 51996, 77994, 78613, 155988, 157226, 235839, 314452, 471678, 550291, 707517, 943356, 1100582, 1415034, 1650873, 2201164, 2830068, 3301746, 4952619, 6603492, 9905238, 19810476]

約数ペア:

[(1, 19810476), (2, 9905238), (3, 6603492), (4, 4952619), (6, 3301746), (7, 2830068), (9, 2201164), (12, 1650873), (14, 1415034), (18, 1100582), (21, 943356), (28, 707517), (36, 550291), (42, 471678), (63, 314452), (84, 235839), (126, 157226), (127, 155988), (252, 78613), (254, 77994), (381, 51996), (508, 38997), (619, 32004), (762, 25998), (889, 22284), (1143, 17332), (1238, 16002), (1524, 12999), (1778, 11142), (1857, 10668), (2286, 8666), (2476, 8001), (2667, 7428), (3556, 5571), (3714, 5334), (4333, 4572)]