21150872

素因数分解:

$2^3\times {\mathrm{151}}^1\times {\mathrm{17509}}^1$

素因数の和:17666

約数の個数: 16

約数和(自身を含む): 39922800

約数和(自身を除く): 18771928

約数列:

[1, 2, 4, 8, 151, 302, 604, 1208, 17509, 35018, 70036, 140072, 2643859, 5287718, 10575436, 21150872]

約数ペア:

[(1, 21150872), (2, 10575436), (4, 5287718), (8, 2643859), (151, 140072), (302, 70036), (604, 35018), (1208, 17509)]