20868758

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{9161}}^1$

素因数の和:9247

約数の個数: 16

約数和(自身を含む): 33642864

約数和(自身を除く): 12774106

約数列:

[1, 2, 17, 34, 67, 134, 1139, 2278, 9161, 18322, 155737, 311474, 613787, 1227574, 10434379, 20868758]

約数ペア:

[(1, 20868758), (2, 10434379), (17, 1227574), (34, 613787), (67, 311474), (134, 155737), (1139, 18322), (2278, 9161)]