2912221221

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{593}}^1\times {\mathrm{17989}}^1$

素因数の和:18605

約数の個数: 32

約数和(自身を含む): 4787354880

約数和(自身を除く): 1875133659

約数列:

[1, 3, 7, 13, 21, 39, 91, 273, 593, 1779, 4151, 7709, 12453, 17989, 23127, 53963, 53967, 125923, 161889, 233857, 377769, 701571, 1636999, 4910997, 10667477, 32002431, 74672339, 138677201, 224017017, 416031603, 970740407, 2912221221]

約数ペア:

[(1, 2912221221), (3, 970740407), (7, 416031603), (13, 224017017), (21, 138677201), (39, 74672339), (91, 32002431), (273, 10667477), (593, 4910997), (1779, 1636999), (4151, 701571), (7709, 377769), (12453, 233857), (17989, 161889), (23127, 125923), (53963, 53967)]