21287224

素因数分解:

$2^3\times 7^1\times {\mathrm{380129}}^1$

素因数の和:380142

約数の個数: 16

約数和(自身を含む): 45615600

約数和(自身を除く): 24328376

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 380129, 760258, 1520516, 2660903, 3041032, 5321806, 10643612, 21287224]

約数ペア:

[(1, 21287224), (2, 10643612), (4, 5321806), (7, 3041032), (8, 2660903), (14, 1520516), (28, 760258), (56, 380129)]