21320278

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{3089}}^1$

素因数の和:3144

約数の個数: 32

約数和(自身を含む): 40046400

約数和(自身を除く): 18726122

約数列:

[1, 2, 7, 14, 17, 29, 34, 58, 119, 203, 238, 406, 493, 986, 3089, 3451, 6178, 6902, 21623, 43246, 52513, 89581, 105026, 179162, 367591, 627067, 735182, 1254134, 1522877, 3045754, 10660139, 21320278]

約数ペア:

[(1, 21320278), (2, 10660139), (7, 3045754), (14, 1522877), (17, 1254134), (29, 735182), (34, 627067), (58, 367591), (119, 179162), (203, 105026), (238, 89581), (406, 52513), (493, 43246), (986, 21623), (3089, 6902), (3451, 6178)]