20684426

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{77761}}^1$

素因数の和:77789

約数の個数: 16

約数和(自身を含む): 37325760

約数和(自身を除く): 16641334

約数列:

[1, 2, 7, 14, 19, 38, 133, 266, 77761, 155522, 544327, 1088654, 1477459, 2954918, 10342213, 20684426]

約数ペア:

[(1, 20684426), (2, 10342213), (7, 2954918), (14, 1477459), (19, 1088654), (38, 544327), (133, 155522), (266, 77761)]