18511173

素因数分解:

$3^4\times {\mathrm{173}}^1\times {\mathrm{1321}}^1$

素因数の和:1506

約数の個数: 20

約数和(自身を含む): 27833388

約数和(自身を除く): 9322215

約数列:

[1, 3, 9, 27, 81, 173, 519, 1321, 1557, 3963, 4671, 11889, 14013, 35667, 107001, 228533, 685599, 2056797, 6170391, 18511173]

約数ペア:

[(1, 18511173), (3, 6170391), (9, 2056797), (27, 685599), (81, 228533), (173, 107001), (519, 35667), (1321, 14013), (1557, 11889), (3963, 4671)]