16981055

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{37321}}^1$

素因数の和:37346

約数の個数: 16

約数和(自身を含む): 25080384

約数和(自身を除く): 8099329

約数列:

[1, 5, 7, 13, 35, 65, 91, 455, 37321, 186605, 261247, 485173, 1306235, 2425865, 3396211, 16981055]

約数ペア:

[(1, 16981055), (5, 3396211), (7, 2425865), (13, 1306235), (35, 485173), (65, 261247), (91, 186605), (455, 37321)]