21240338

素因数分解:

$2^1\times 7^1\times {\mathrm{739}}^1\times {\mathrm{2053}}^1$

素因数の和:2801

約数の個数: 16

約数和(自身を含む): 36479040

約数和(自身を除く): 15238702

約数列:

[1, 2, 7, 14, 739, 1478, 2053, 4106, 5173, 10346, 14371, 28742, 1517167, 3034334, 10620169, 21240338]

約数ペア:

[(1, 21240338), (2, 10620169), (7, 3034334), (14, 1517167), (739, 28742), (1478, 14371), (2053, 10346), (4106, 5173)]