21157768

素因数分解:

$2^3\times {\mathrm{229}}^1\times {\mathrm{11549}}^1$

素因数の和:11784

約数の個数: 16

約数和(自身を含む): 39847500

約数和(自身を除く): 18689732

約数列:

[1, 2, 4, 8, 229, 458, 916, 1832, 11549, 23098, 46196, 92392, 2644721, 5289442, 10578884, 21157768]

約数ペア:

[(1, 21157768), (2, 10578884), (4, 5289442), (8, 2644721), (229, 92392), (458, 46196), (916, 23098), (1832, 11549)]