21081906

素因数分解:

$2^1\times 3^2\times {\mathrm{19}}^1\times {\mathrm{61643}}^1$

素因数の和:61670

約数の個数: 24

約数和(自身を含む): 48082320

約数和(自身を除く): 27000414

約数列:

[1, 2, 3, 6, 9, 18, 19, 38, 57, 114, 171, 342, 61643, 123286, 184929, 369858, 554787, 1109574, 1171217, 2342434, 3513651, 7027302, 10540953, 21081906]

約数ペア:

[(1, 21081906), (2, 10540953), (3, 7027302), (6, 3513651), (9, 2342434), (18, 1171217), (19, 1109574), (38, 554787), (57, 369858), (114, 184929), (171, 123286), (342, 61643)]