20877616

素因数分解:

$2^4\times {\mathrm{61}}^1\times {\mathrm{21391}}^1$

素因数の和:21460

約数の個数: 20

約数和(自身を含む): 41115424

約数和(自身を除く): 20237808

約数列:

[1, 2, 4, 8, 16, 61, 122, 244, 488, 976, 21391, 42782, 85564, 171128, 342256, 1304851, 2609702, 5219404, 10438808, 20877616]

約数ペア:

[(1, 20877616), (2, 10438808), (4, 5219404), (8, 2609702), (16, 1304851), (61, 342256), (122, 171128), (244, 85564), (488, 42782), (976, 21391)]