19700912

素因数分解:

$2^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{15991}}^1$

素因数の和:16017

約数の個数: 40

約数和(自身を含む): 47592192

約数和(自身を除く): 27891280

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 44, 56, 77, 88, 112, 154, 176, 308, 616, 1232, 15991, 31982, 63964, 111937, 127928, 175901, 223874, 255856, 351802, 447748, 703604, 895496, 1231307, 1407208, 1790992, 2462614, 2814416, 4925228, 9850456, 19700912]

約数ペア:

[(1, 19700912), (2, 9850456), (4, 4925228), (7, 2814416), (8, 2462614), (11, 1790992), (14, 1407208), (16, 1231307), (22, 895496), (28, 703604), (44, 447748), (56, 351802), (77, 255856), (88, 223874), (112, 175901), (154, 127928), (176, 111937), (308, 63964), (616, 31982), (1232, 15991)]