7620981

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{89}}^1$

素因数の和:205

約数の個数: 32

約数和(自身を含む): 11508480

約数和(自身を除く): 3887499

約数列:

[1, 3, 17, 23, 51, 69, 73, 89, 219, 267, 391, 1173, 1241, 1513, 1679, 2047, 3723, 4539, 5037, 6141, 6497, 19491, 28543, 34799, 85629, 104397, 110449, 149431, 331347, 448293, 2540327, 7620981]

約数ペア:

[(1, 7620981), (3, 2540327), (17, 448293), (23, 331347), (51, 149431), (69, 110449), (73, 104397), (89, 85629), (219, 34799), (267, 28543), (391, 19491), (1173, 6497), (1241, 6141), (1513, 5037), (1679, 4539), (2047, 3723)]