21258706

素因数分解:

$2^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{13931}}^1$

素因数の和:14049

約数の個数: 16

約数和(自身を含む): 36780480

約数和(自身を除く): 15521774

約数列:

[1, 2, 7, 14, 109, 218, 763, 1526, 13931, 27862, 97517, 195034, 1518479, 3036958, 10629353, 21258706]

約数ペア:

[(1, 21258706), (2, 10629353), (7, 3036958), (14, 1518479), (109, 195034), (218, 97517), (763, 27862), (1526, 13931)]