20538931

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{53}}^1\times {\mathrm{83}}^1$

素因数の和:195

約数の個数: 32

約数和(自身を含む): 26127360

約数和(自身を除く): 5588429

約数列:

[1, 7, 23, 29, 53, 83, 161, 203, 371, 581, 667, 1219, 1537, 1909, 2407, 4399, 4669, 8533, 10759, 13363, 16849, 30793, 35351, 55361, 101177, 127571, 247457, 387527, 708239, 892997, 2934133, 20538931]

約数ペア:

[(1, 20538931), (7, 2934133), (23, 892997), (29, 708239), (53, 387527), (83, 247457), (161, 127571), (203, 101177), (371, 55361), (581, 35351), (667, 30793), (1219, 16849), (1537, 13363), (1909, 10759), (2407, 8533), (4399, 4669)]