19647988

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{113}}^1\times {\mathrm{2557}}^1$

素因数の和:2691

約数の個数: 24

約数和(自身を含む): 36743112

約数和(自身を除く): 17095124

約数列:

[1, 2, 4, 17, 34, 68, 113, 226, 452, 1921, 2557, 3842, 5114, 7684, 10228, 43469, 86938, 173876, 288941, 577882, 1155764, 4911997, 9823994, 19647988]

約数ペア:

[(1, 19647988), (2, 9823994), (4, 4911997), (17, 1155764), (34, 577882), (68, 288941), (113, 173876), (226, 86938), (452, 43469), (1921, 10228), (2557, 7684), (3842, 5114)]