21071078

素因数分解:

$2^1\times 7^2\times {\mathrm{127}}^1\times {\mathrm{1693}}^1$

素因数の和:1836

約数の個数: 24

約数和(自身を含む): 37078272

約数和(自身を除く): 16007194

約数列:

[1, 2, 7, 14, 49, 98, 127, 254, 889, 1693, 1778, 3386, 6223, 11851, 12446, 23702, 82957, 165914, 215011, 430022, 1505077, 3010154, 10535539, 21071078]

約数ペア:

[(1, 21071078), (2, 10535539), (7, 3010154), (14, 1505077), (49, 430022), (98, 215011), (127, 165914), (254, 82957), (889, 23702), (1693, 12446), (1778, 11851), (3386, 6223)]