18601219

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{2879}}^1$

素因数の和:2970

約数の個数: 16

約数和(自身を含む): 23224320

約数和(自身を除く): 4623101

約数列:

[1, 7, 13, 71, 91, 497, 923, 2879, 6461, 20153, 37427, 204409, 261989, 1430863, 2657317, 18601219]

約数ペア:

[(1, 18601219), (7, 2657317), (13, 1430863), (71, 261989), (91, 204409), (497, 37427), (923, 20153), (2879, 6461)]