219653907

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{241}}^1\times {\mathrm{389}}^1$

素因数の和:715

約数の個数: 32

約数和(自身を含む): 326177280

約数和(自身を除く): 106523373

約数列:

[1, 3, 11, 33, 71, 213, 241, 389, 723, 781, 1167, 2343, 2651, 4279, 7953, 12837, 17111, 27619, 51333, 82857, 93749, 188221, 281247, 303809, 564663, 911427, 1031239, 3093717, 6656179, 19968537, 73217969, 219653907]

約数ペア:

[(1, 219653907), (3, 73217969), (11, 19968537), (33, 6656179), (71, 3093717), (213, 1031239), (241, 911427), (389, 564663), (723, 303809), (781, 281247), (1167, 188221), (2343, 93749), (2651, 82857), (4279, 51333), (7953, 27619), (12837, 17111)]