21584556

素因数分解:

$2^2\times 3^4\times 7^1\times {\mathrm{31}}^1\times {\mathrm{307}}^1$

素因数の和:361

約数の個数: 120

約数和(自身を含む): 66784256

約数和(自身を除く): 45199700

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 31, 36, 42, 54, 62, 63, 81, 84, 93, 108, 124, 126, 162, 186, 189, 217, 252, 279, 307, 324, 372, 378, 434, 558, 567, 614, 651, 756, 837, 868, 921, 1116, 1134, 1228, 1302, 1674, 1842, 1953, 2149, 2268, 2511, 2604, 2763, 3348, 3684, 3906, 4298, 5022, 5526, 5859, 6447, 7812, 8289, 8596, 9517, 10044, 11052, 11718, 12894, 16578, 17577, 19034, 19341, 23436, 24867, 25788, 28551, 33156, 35154, 38068, 38682, 49734, 57102, 58023, 66619, 70308, 77364, 85653, 99468, 114204, 116046, 133238, 171306, 174069, 199857, 232092, 256959, 266476, 342612, 348138, 399714, 513918, 599571, 696276, 770877, 799428, 1027836, 1199142, 1541754, 1798713, 2398284, 3083508, 3597426, 5396139, 7194852, 10792278, 21584556]

約数ペア:

[(1, 21584556), (2, 10792278), (3, 7194852), (4, 5396139), (6, 3597426), (7, 3083508), (9, 2398284), (12, 1798713), (14, 1541754), (18, 1199142), (21, 1027836), (27, 799428), (28, 770877), (31, 696276), (36, 599571), (42, 513918), (54, 399714), (62, 348138), (63, 342612), (81, 266476), (84, 256959), (93, 232092), (108, 199857), (124, 174069), (126, 171306), (162, 133238), (186, 116046), (189, 114204), (217, 99468), (252, 85653), (279, 77364), (307, 70308), (324, 66619), (372, 58023), (378, 57102), (434, 49734), (558, 38682), (567, 38068), (614, 35154), (651, 33156), (756, 28551), (837, 25788), (868, 24867), (921, 23436), (1116, 19341), (1134, 19034), (1228, 17577), (1302, 16578), (1674, 12894), (1842, 11718), (1953, 11052), (2149, 10044), (2268, 9517), (2511, 8596), (2604, 8289), (2763, 7812), (3348, 6447), (3684, 5859), (3906, 5526), (4298, 5022)]