18469377

素因数分解:

$3^4\times {\mathrm{107}}^1\times {\mathrm{2131}}^1$

素因数の和:2250

約数の個数: 20

約数和(自身を含む): 27860976

約数和(自身を除く): 9391599

約数列:

[1, 3, 9, 27, 81, 107, 321, 963, 2131, 2889, 6393, 8667, 19179, 57537, 172611, 228017, 684051, 2052153, 6156459, 18469377]

約数ペア:

[(1, 18469377), (3, 6156459), (9, 2052153), (27, 684051), (81, 228017), (107, 172611), (321, 57537), (963, 19179), (2131, 8667), (2889, 6393)]