208290719

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{3371}}^1$

素因数の和:3495

約数の個数: 24

約数和(自身を含む): 263703888

約数和(自身を除く): 55413169

約数列:

[1, 7, 13, 49, 91, 97, 637, 679, 1261, 3371, 4753, 8827, 23597, 43823, 61789, 165179, 306761, 326987, 2147327, 2288909, 4250831, 16022363, 29755817, 208290719]

約数ペア:

[(1, 208290719), (7, 29755817), (13, 16022363), (49, 4250831), (91, 2288909), (97, 2147327), (637, 326987), (679, 306761), (1261, 165179), (3371, 61789), (4753, 43823), (8827, 23597)]