19966738

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{197}}^1\times {\mathrm{271}}^1$

素因数の和:498

約数の個数: 32

約数和(自身を含む): 34898688

約数和(自身を除く): 14931950

約数列:

[1, 2, 11, 17, 22, 34, 187, 197, 271, 374, 394, 542, 2167, 2981, 3349, 4334, 4607, 5962, 6698, 9214, 36839, 50677, 53387, 73678, 101354, 106774, 587257, 907579, 1174514, 1815158, 9983369, 19966738]

約数ペア:

[(1, 19966738), (2, 9983369), (11, 1815158), (17, 1174514), (22, 907579), (34, 587257), (187, 106774), (197, 101354), (271, 73678), (374, 53387), (394, 50677), (542, 36839), (2167, 9214), (2981, 6698), (3349, 5962), (4334, 4607)]