81513523

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{16901}}^1$

素因数の和:16974

約数の個数: 16

約数和(自身を含む): 102223296

約数和(自身を除く): 20709773

約数列:

[1, 7, 13, 53, 91, 371, 689, 4823, 16901, 118307, 219713, 895753, 1537991, 6270271, 11644789, 81513523]

約数ペア:

[(1, 81513523), (7, 11644789), (13, 6270271), (53, 1537991), (91, 895753), (371, 219713), (689, 118307), (4823, 16901)]