21127704

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^2\times {\mathrm{5209}}^1$

素因数の和:5244

約数の個数: 48

約数和(自身を含む): 57205800

約数和(自身を除く): 36078096

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 104, 156, 169, 312, 338, 507, 676, 1014, 1352, 2028, 4056, 5209, 10418, 15627, 20836, 31254, 41672, 62508, 67717, 125016, 135434, 203151, 270868, 406302, 541736, 812604, 880321, 1625208, 1760642, 2640963, 3521284, 5281926, 7042568, 10563852, 21127704]

約数ペア:

[(1, 21127704), (2, 10563852), (3, 7042568), (4, 5281926), (6, 3521284), (8, 2640963), (12, 1760642), (13, 1625208), (24, 880321), (26, 812604), (39, 541736), (52, 406302), (78, 270868), (104, 203151), (156, 135434), (169, 125016), (312, 67717), (338, 62508), (507, 41672), (676, 31254), (1014, 20836), (1352, 15627), (2028, 10418), (4056, 5209)]