199339959

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{16981}}^1$

素因数の和:17047

約数の個数: 32

約数和(自身を含む): 334749184

約数和(自身を除く): 135409225

約数列:

[1, 3, 7, 13, 21, 39, 43, 91, 129, 273, 301, 559, 903, 1677, 3913, 11739, 16981, 50943, 118867, 220753, 356601, 662259, 730183, 1545271, 2190549, 4635813, 5111281, 9492379, 15333843, 28477137, 66446653, 199339959]

約数ペア:

[(1, 199339959), (3, 66446653), (7, 28477137), (13, 15333843), (21, 9492379), (39, 5111281), (43, 4635813), (91, 2190549), (129, 1545271), (273, 730183), (301, 662259), (559, 356601), (903, 220753), (1677, 118867), (3913, 50943), (11739, 16981)]