21600656

素因数分解:

$2^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{197}}^1$

素因数の和:312

約数の個数: 80

約数和(自身を含む): 53032320

約数和(自身を除く): 31431664

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 44, 56, 77, 88, 89, 112, 154, 176, 178, 197, 308, 356, 394, 616, 623, 712, 788, 979, 1232, 1246, 1379, 1424, 1576, 1958, 2167, 2492, 2758, 3152, 3916, 4334, 4984, 5516, 6853, 7832, 8668, 9968, 11032, 13706, 15169, 15664, 17336, 17533, 22064, 27412, 30338, 34672, 35066, 54824, 60676, 70132, 109648, 121352, 122731, 140264, 192863, 242704, 245462, 280528, 385726, 490924, 771452, 981848, 1350041, 1542904, 1963696, 2700082, 3085808, 5400164, 10800328, 21600656]

約数ペア:

[(1, 21600656), (2, 10800328), (4, 5400164), (7, 3085808), (8, 2700082), (11, 1963696), (14, 1542904), (16, 1350041), (22, 981848), (28, 771452), (44, 490924), (56, 385726), (77, 280528), (88, 245462), (89, 242704), (112, 192863), (154, 140264), (176, 122731), (178, 121352), (197, 109648), (308, 70132), (356, 60676), (394, 54824), (616, 35066), (623, 34672), (712, 30338), (788, 27412), (979, 22064), (1232, 17533), (1246, 17336), (1379, 15664), (1424, 15169), (1576, 13706), (1958, 11032), (2167, 9968), (2492, 8668), (2758, 7832), (3152, 6853), (3916, 5516), (4334, 4984)]