21379604

素因数分解:

$2^2\times {\mathrm{23}}^1\times {\mathrm{281}}^1\times {\mathrm{827}}^1$

素因数の和:1135

約数の個数: 24

約数和(自身を含む): 39227328

約数和(自身を除く): 17847724

約数列:

[1, 2, 4, 23, 46, 92, 281, 562, 827, 1124, 1654, 3308, 6463, 12926, 19021, 25852, 38042, 76084, 232387, 464774, 929548, 5344901, 10689802, 21379604]

約数ペア:

[(1, 21379604), (2, 10689802), (4, 5344901), (23, 929548), (46, 464774), (92, 232387), (281, 76084), (562, 38042), (827, 25852), (1124, 19021), (1654, 12926), (3308, 6463)]