18684991

素因数分解:

${\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{577}}^1$

素因数の和:690

約数の個数: 16

約数和(自身を含む): 20974464

約数和(自身を除く): 2289473

約数列:

[1, 13, 47, 53, 577, 611, 689, 2491, 7501, 27119, 30581, 32383, 352547, 397553, 1437307, 18684991]

約数ペア:

[(1, 18684991), (13, 1437307), (47, 397553), (53, 352547), (577, 32383), (611, 30581), (689, 27119), (2491, 7501)]