19975018

素因数分解:

$2^1\times 7^1\times {\mathrm{683}}^1\times {\mathrm{2089}}^1$

素因数の和:2781

約数の個数: 16

約数和(自身を含む): 34309440

約数和(自身を除く): 14334422

約数列:

[1, 2, 7, 14, 683, 1366, 2089, 4178, 4781, 9562, 14623, 29246, 1426787, 2853574, 9987509, 19975018]

約数ペア:

[(1, 19975018), (2, 9987509), (7, 2853574), (14, 1426787), (683, 29246), (1366, 14623), (2089, 9562), (4178, 4781)]