21420182

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{80527}}^1$

素因数の和:80555

約数の個数: 16

約数和(自身を含む): 38653440

約数和(自身を除く): 17233258

約数列:

[1, 2, 7, 14, 19, 38, 133, 266, 80527, 161054, 563689, 1127378, 1530013, 3060026, 10710091, 21420182]

約数ペア:

[(1, 21420182), (2, 10710091), (7, 3060026), (14, 1530013), (19, 1127378), (38, 563689), (133, 161054), (266, 80527)]