21988656

素因数分解:

$2^4\times 3^2\times {\mathrm{37}}^1\times {\mathrm{4127}}^1$

素因数の和:4178

約数の個数: 60

約数和(自身を含む): 63216192

約数和(自身を除く): 41227536

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 37, 48, 72, 74, 111, 144, 148, 222, 296, 333, 444, 592, 666, 888, 1332, 1776, 2664, 4127, 5328, 8254, 12381, 16508, 24762, 33016, 37143, 49524, 66032, 74286, 99048, 148572, 152699, 198096, 297144, 305398, 458097, 594288, 610796, 916194, 1221592, 1374291, 1832388, 2443184, 2748582, 3664776, 5497164, 7329552, 10994328, 21988656]

約数ペア:

[(1, 21988656), (2, 10994328), (3, 7329552), (4, 5497164), (6, 3664776), (8, 2748582), (9, 2443184), (12, 1832388), (16, 1374291), (18, 1221592), (24, 916194), (36, 610796), (37, 594288), (48, 458097), (72, 305398), (74, 297144), (111, 198096), (144, 152699), (148, 148572), (222, 99048), (296, 74286), (333, 66032), (444, 49524), (592, 37143), (666, 33016), (888, 24762), (1332, 16508), (1776, 12381), (2664, 8254), (4127, 5328)]