27911515

素因数分解:

$5^1\times {\mathrm{43}}^1\times {\mathrm{131}}^1\times {\mathrm{991}}^1$

素因数の和:1170

約数の個数: 16

約数和(自身を含む): 34569216

約数和(自身を除く): 6657701

約数列:

[1, 5, 43, 131, 215, 655, 991, 4955, 5633, 28165, 42613, 129821, 213065, 649105, 5582303, 27911515]

約数ペア:

[(1, 27911515), (5, 5582303), (43, 649105), (131, 213065), (215, 129821), (655, 42613), (991, 28165), (4955, 5633)]