18738391

素因数分解:

$7^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{1019}}^1$

素因数の和:1134

約数の個数: 16

約数和(自身を含む): 22325760

約数和(自身を除く): 3587369

約数列:

[1, 7, 37, 71, 259, 497, 1019, 2627, 7133, 18389, 37703, 72349, 263921, 506443, 2676913, 18738391]

約数ペア:

[(1, 18738391), (7, 2676913), (37, 506443), (71, 263921), (259, 72349), (497, 37703), (1019, 18389), (2627, 7133)]