20654732

素因数分解:

$2^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{19937}}^1$

素因数の和:19985

約数の個数: 24

約数和(自身を含む): 42428064

約数和(自身を除く): 21773332

約数列:

[1, 2, 4, 7, 14, 28, 37, 74, 148, 259, 518, 1036, 19937, 39874, 79748, 139559, 279118, 558236, 737669, 1475338, 2950676, 5163683, 10327366, 20654732]

約数ペア:

[(1, 20654732), (2, 10327366), (4, 5163683), (7, 2950676), (14, 1475338), (28, 737669), (37, 558236), (74, 279118), (148, 139559), (259, 79748), (518, 39874), (1036, 19937)]