19957353

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{1171}}^1$

素因数の和:1229

約数の個数: 32

約数和(自身を含む): 31503360

約数和(自身を除く): 11546007

約数列:

[1, 3, 13, 19, 23, 39, 57, 69, 247, 299, 437, 741, 897, 1171, 1311, 3513, 5681, 15223, 17043, 22249, 26933, 45669, 66747, 80799, 289237, 350129, 511727, 867711, 1050387, 1535181, 6652451, 19957353]

約数ペア:

[(1, 19957353), (3, 6652451), (13, 1535181), (19, 1050387), (23, 867711), (39, 511727), (57, 350129), (69, 289237), (247, 80799), (299, 66747), (437, 45669), (741, 26933), (897, 22249), (1171, 17043), (1311, 15223), (3513, 5681)]