21131736

素因数分解:

$2^3\times 3^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{449}}^1$

素因数の和:548

約数の個数: 64

約数和(自身を含む): 55404000

約数和(自身を除く): 34272264

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 37, 53, 74, 106, 111, 148, 159, 212, 222, 296, 318, 424, 444, 449, 636, 888, 898, 1272, 1347, 1796, 1961, 2694, 3592, 3922, 5388, 5883, 7844, 10776, 11766, 15688, 16613, 23532, 23797, 33226, 47064, 47594, 49839, 66452, 71391, 95188, 99678, 132904, 142782, 190376, 199356, 285564, 398712, 571128, 880489, 1760978, 2641467, 3521956, 5282934, 7043912, 10565868, 21131736]

約数ペア:

[(1, 21131736), (2, 10565868), (3, 7043912), (4, 5282934), (6, 3521956), (8, 2641467), (12, 1760978), (24, 880489), (37, 571128), (53, 398712), (74, 285564), (106, 199356), (111, 190376), (148, 142782), (159, 132904), (212, 99678), (222, 95188), (296, 71391), (318, 66452), (424, 49839), (444, 47594), (449, 47064), (636, 33226), (888, 23797), (898, 23532), (1272, 16613), (1347, 15688), (1796, 11766), (1961, 10776), (2694, 7844), (3592, 5883), (3922, 5388)]