19007978

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{283}}^1$

素因数の和:410

約数の個数: 32

約数和(自身を含む): 32389632

約数和(自身を除く): 13381654

約数列:

[1, 2, 11, 22, 43, 71, 86, 142, 283, 473, 566, 781, 946, 1562, 3053, 3113, 6106, 6226, 12169, 20093, 24338, 33583, 40186, 67166, 133859, 221023, 267718, 442046, 863999, 1727998, 9503989, 19007978]

約数ペア:

[(1, 19007978), (2, 9503989), (11, 1727998), (22, 863999), (43, 442046), (71, 267718), (86, 221023), (142, 133859), (283, 67166), (473, 40186), (566, 33583), (781, 24338), (946, 20093), (1562, 12169), (3053, 6226), (3113, 6106)]