19921784

素因数分解:

$2^3\times {\mathrm{541}}^1\times {\mathrm{4603}}^1$

素因数の和:5150

約数の個数: 16

約数和(自身を含む): 37430520

約数和(自身を除く): 17508736

約数列:

[1, 2, 4, 8, 541, 1082, 2164, 4328, 4603, 9206, 18412, 36824, 2490223, 4980446, 9960892, 19921784]

約数ペア:

[(1, 19921784), (2, 9960892), (4, 4980446), (8, 2490223), (541, 36824), (1082, 18412), (2164, 9206), (4328, 4603)]