20941784

素因数分解:

$2^3\times {\mathrm{53}}^1\times {\mathrm{49391}}^1$

素因数の和:49450

約数の個数: 16

約数和(自身を含む): 40007520

約数和(自身を除く): 19065736

約数列:

[1, 2, 4, 8, 53, 106, 212, 424, 49391, 98782, 197564, 395128, 2617723, 5235446, 10470892, 20941784]

約数ペア:

[(1, 20941784), (2, 10470892), (4, 5235446), (8, 2617723), (53, 395128), (106, 197564), (212, 98782), (424, 49391)]