18908734

素因数分解:

$2^1\times {\mathrm{13}}^2\times {\mathrm{43}}^1\times {\mathrm{1301}}^1$

素因数の和:1372

約数の個数: 24

約数和(自身を含む): 31451112

約数和(自身を除く): 12542378

約数列:

[1, 2, 13, 26, 43, 86, 169, 338, 559, 1118, 1301, 2602, 7267, 14534, 16913, 33826, 55943, 111886, 219869, 439738, 727259, 1454518, 9454367, 18908734]

約数ペア:

[(1, 18908734), (2, 9454367), (13, 1454518), (26, 727259), (43, 439738), (86, 219869), (169, 111886), (338, 55943), (559, 33826), (1118, 16913), (1301, 14534), (2602, 7267)]