21655977

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{60661}}^1$

素因数の和:60688

約数の個数: 16

約数和(自身を含む): 34941312

約数和(自身を除く): 13285335

約数列:

[1, 3, 7, 17, 21, 51, 119, 357, 60661, 181983, 424627, 1031237, 1273881, 3093711, 7218659, 21655977]

約数ペア:

[(1, 21655977), (3, 7218659), (7, 3093711), (17, 1273881), (21, 1031237), (51, 424627), (119, 181983), (357, 60661)]