19779958

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{21929}}^1$

素因数の和:21983

約数の個数: 16

約数和(自身を含む): 33158160

約数和(自身を除く): 13378202

約数列:

[1, 2, 11, 22, 41, 82, 451, 902, 21929, 43858, 241219, 482438, 899089, 1798178, 9889979, 19779958]

約数ペア:

[(1, 19779958), (2, 9889979), (11, 1798178), (22, 899089), (41, 482438), (82, 241219), (451, 43858), (902, 21929)]