19387778

素因数分解:

$2^1\times {\mathrm{37}}^2\times {\mathrm{73}}^1\times {\mathrm{97}}^1$

素因数の和:246

約数の個数: 24

約数和(自身を含む): 30610692

約数和(自身を除く): 11222914

約数列:

[1, 2, 37, 73, 74, 97, 146, 194, 1369, 2701, 2738, 3589, 5402, 7081, 7178, 14162, 99937, 132793, 199874, 261997, 265586, 523994, 9693889, 19387778]

約数ペア:

[(1, 19387778), (2, 9693889), (37, 523994), (73, 265586), (74, 261997), (97, 199874), (146, 132793), (194, 99937), (1369, 14162), (2701, 7178), (2738, 7081), (3589, 5402)]