21176584

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{173}}^1$

素因数の和:310

約数の個数: 64

約数和(自身を含む): 47355840

約数和(自身を除く): 26179256

約数列:

[1, 2, 4, 8, 11, 13, 22, 26, 44, 52, 88, 104, 107, 143, 173, 214, 286, 346, 428, 572, 692, 856, 1144, 1177, 1384, 1391, 1903, 2249, 2354, 2782, 3806, 4498, 4708, 5564, 7612, 8996, 9416, 11128, 15224, 15301, 17992, 18511, 24739, 30602, 37022, 49478, 61204, 74044, 98956, 122408, 148088, 197912, 203621, 240643, 407242, 481286, 814484, 962572, 1628968, 1925144, 2647073, 5294146, 10588292, 21176584]

約数ペア:

[(1, 21176584), (2, 10588292), (4, 5294146), (8, 2647073), (11, 1925144), (13, 1628968), (22, 962572), (26, 814484), (44, 481286), (52, 407242), (88, 240643), (104, 203621), (107, 197912), (143, 148088), (173, 122408), (214, 98956), (286, 74044), (346, 61204), (428, 49478), (572, 37022), (692, 30602), (856, 24739), (1144, 18511), (1177, 17992), (1384, 15301), (1391, 15224), (1903, 11128), (2249, 9416), (2354, 8996), (2782, 7612), (3806, 5564), (4498, 4708)]