16978294

素因数分解:

$2^1\times {\mathrm{139}}^1\times {\mathrm{157}}^1\times {\mathrm{389}}^1$

素因数の和:687

約数の個数: 16

約数和(自身を含む): 25880400

約数和(自身を除く): 8902106

約数列:

[1, 2, 139, 157, 278, 314, 389, 778, 21823, 43646, 54071, 61073, 108142, 122146, 8489147, 16978294]

約数ペア:

[(1, 16978294), (2, 8489147), (139, 122146), (157, 108142), (278, 61073), (314, 54071), (389, 43646), (778, 21823)]