18886878

素因数分解:

$2^1\times 3^3\times {\mathrm{397}}^1\times {\mathrm{881}}^1$

素因数の和:1289

約数の個数: 32

約数和(自身を含む): 42124320

約数和(自身を除く): 23237442

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 397, 794, 881, 1191, 1762, 2382, 2643, 3573, 5286, 7146, 7929, 10719, 15858, 21438, 23787, 47574, 349757, 699514, 1049271, 2098542, 3147813, 6295626, 9443439, 18886878]

約数ペア:

[(1, 18886878), (2, 9443439), (3, 6295626), (6, 3147813), (9, 2098542), (18, 1049271), (27, 699514), (54, 349757), (397, 47574), (794, 23787), (881, 21438), (1191, 15858), (1762, 10719), (2382, 7929), (2643, 7146), (3573, 5286)]