21247074

素因数分解:

$2^1\times 3^2\times {\mathrm{43}}^1\times {\mathrm{97}}^1\times {\mathrm{283}}^1$

素因数の和:431

約数の個数: 48

約数和(自身を含む): 47759712

約数和(自身を除く): 26512638

約数列:

[1, 2, 3, 6, 9, 18, 43, 86, 97, 129, 194, 258, 283, 291, 387, 566, 582, 774, 849, 873, 1698, 1746, 2547, 4171, 5094, 8342, 12169, 12513, 24338, 25026, 27451, 36507, 37539, 54902, 73014, 75078, 82353, 109521, 164706, 219042, 247059, 494118, 1180393, 2360786, 3541179, 7082358, 10623537, 21247074]

約数ペア:

[(1, 21247074), (2, 10623537), (3, 7082358), (6, 3541179), (9, 2360786), (18, 1180393), (43, 494118), (86, 247059), (97, 219042), (129, 164706), (194, 109521), (258, 82353), (283, 75078), (291, 73014), (387, 54902), (566, 37539), (582, 36507), (774, 27451), (849, 25026), (873, 24338), (1698, 12513), (1746, 12169), (2547, 8342), (4171, 5094)]