218345569

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{89}}^1\times {\mathrm{653}}^1$

素因数の和:789

約数の個数: 24

約数和(自身を含む): 252980280

約数和(自身を除く): 34634711

約数列:

[1, 13, 17, 89, 221, 289, 653, 1157, 1513, 3757, 8489, 11101, 19669, 25721, 58117, 144313, 188717, 334373, 755521, 987989, 2453321, 12843857, 16795813, 218345569]

約数ペア:

[(1, 218345569), (13, 16795813), (17, 12843857), (89, 2453321), (221, 987989), (289, 755521), (653, 334373), (1157, 188717), (1513, 144313), (3757, 58117), (8489, 25721), (11101, 19669)]