18787864

素因数分解:

$2^3\times {\mathrm{53}}^1\times {\mathrm{73}}^1\times {\mathrm{607}}^1$

素因数の和:739

約数の個数: 32

約数和(自身を含む): 36443520

約数和(自身を除く): 17655656

約数列:

[1, 2, 4, 8, 53, 73, 106, 146, 212, 292, 424, 584, 607, 1214, 2428, 3869, 4856, 7738, 15476, 30952, 32171, 44311, 64342, 88622, 128684, 177244, 257368, 354488, 2348483, 4696966, 9393932, 18787864]

約数ペア:

[(1, 18787864), (2, 9393932), (4, 4696966), (8, 2348483), (53, 354488), (73, 257368), (106, 177244), (146, 128684), (212, 88622), (292, 64342), (424, 44311), (584, 32171), (607, 30952), (1214, 15476), (2428, 7738), (3869, 4856)]