21913902

素因数分解:

$2^1\times 3^4\times {\mathrm{135271}}^1$

素因数の和:135285

約数の個数: 20

約数和(自身を含む): 49103736

約数和(自身を除く): 27189834

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 81, 162, 135271, 270542, 405813, 811626, 1217439, 2434878, 3652317, 7304634, 10956951, 21913902]

約数ペア:

[(1, 21913902), (2, 10956951), (3, 7304634), (6, 3652317), (9, 2434878), (18, 1217439), (27, 811626), (54, 405813), (81, 270542), (162, 135271)]