21808178

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{91631}}^1$

素因数の和:91657

約数の個数: 16

約数和(自身を含む): 39585024

約数和(自身を除く): 17776846

約数列:

[1, 2, 7, 14, 17, 34, 119, 238, 91631, 183262, 641417, 1282834, 1557727, 3115454, 10904089, 21808178]

約数ペア:

[(1, 21808178), (2, 10904089), (7, 3115454), (14, 1557727), (17, 1282834), (34, 641417), (119, 183262), (238, 91631)]