31517297

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{2381}}^1$

素因数の和:2480

約数の個数: 16

約数和(自身を含む): 37807104

約数和(自身を除く): 6289807

約数列:

[1, 7, 31, 61, 217, 427, 1891, 2381, 13237, 16667, 73811, 145241, 516677, 1016687, 4502471, 31517297]

約数ペア:

[(1, 31517297), (7, 4502471), (31, 1016687), (61, 516677), (217, 145241), (427, 73811), (1891, 16667), (2381, 13237)]