21031256

素因数分解:

$2^3\times {\mathrm{139}}^1\times {\mathrm{18913}}^1$

素因数の和:19058

約数の個数: 16

約数和(自身を含む): 39719400

約数和(自身を除く): 18688144

約数列:

[1, 2, 4, 8, 139, 278, 556, 1112, 18913, 37826, 75652, 151304, 2628907, 5257814, 10515628, 21031256]

約数ペア:

[(1, 21031256), (2, 10515628), (4, 5257814), (8, 2628907), (139, 151304), (278, 75652), (556, 37826), (1112, 18913)]