27991018

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{137}}^1\times {\mathrm{251}}^1$

素因数の和:438

約数の個数: 32

約数和(自身を含む): 47573568

約数和(自身を除く): 19582550

約数列:

[1, 2, 11, 22, 37, 74, 137, 251, 274, 407, 502, 814, 1507, 2761, 3014, 5069, 5522, 9287, 10138, 18574, 34387, 55759, 68774, 102157, 111518, 204314, 378257, 756514, 1272319, 2544638, 13995509, 27991018]

約数ペア:

[(1, 27991018), (2, 13995509), (11, 2544638), (22, 1272319), (37, 756514), (74, 378257), (137, 204314), (251, 111518), (274, 102157), (407, 68774), (502, 55759), (814, 34387), (1507, 18574), (2761, 10138), (3014, 9287), (5069, 5522)]