20615170

素因数分解:

$2^1\times 5^1\times {\mathrm{109}}^1\times {\mathrm{18913}}^1$

素因数の和:19029

約数の個数: 16

約数和(自身を含む): 37449720

約数和(自身を除く): 16834550

約数列:

[1, 2, 5, 10, 109, 218, 545, 1090, 18913, 37826, 94565, 189130, 2061517, 4123034, 10307585, 20615170]

約数ペア:

[(1, 20615170), (2, 10307585), (5, 4123034), (10, 2061517), (109, 189130), (218, 94565), (545, 37826), (1090, 18913)]