21091598

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{571}}^1$

素因数の和:680

約数の個数: 32

約数和(自身を含む): 36571392

約数和(自身を除く): 15479794

約数列:

[1, 2, 11, 22, 23, 46, 73, 146, 253, 506, 571, 803, 1142, 1606, 1679, 3358, 6281, 12562, 13133, 18469, 26266, 36938, 41683, 83366, 144463, 288926, 458513, 917026, 958709, 1917418, 10545799, 21091598]

約数ペア:

[(1, 21091598), (2, 10545799), (11, 1917418), (22, 958709), (23, 917026), (46, 458513), (73, 288926), (146, 144463), (253, 83366), (506, 41683), (571, 36938), (803, 26266), (1142, 18469), (1606, 13133), (1679, 12562), (3358, 6281)]