21218964

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^2\times {\mathrm{10463}}^1$

素因数の和:10496

約数の個数: 36

約数和(自身を含む): 53617536

約数和(自身を除く): 32398572

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 169, 338, 507, 676, 1014, 2028, 10463, 20926, 31389, 41852, 62778, 125556, 136019, 272038, 408057, 544076, 816114, 1632228, 1768247, 3536494, 5304741, 7072988, 10609482, 21218964]

約数ペア:

[(1, 21218964), (2, 10609482), (3, 7072988), (4, 5304741), (6, 3536494), (12, 1768247), (13, 1632228), (26, 816114), (39, 544076), (52, 408057), (78, 272038), (156, 136019), (169, 125556), (338, 62778), (507, 41852), (676, 31389), (1014, 20926), (2028, 10463)]