18193893

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{53}}^2\times {\mathrm{127}}^1$

素因数の和:253

約数の個数: 24

約数和(自身を含む): 26385408

約数和(自身を除く): 8191515

約数列:

[1, 3, 17, 51, 53, 127, 159, 381, 901, 2159, 2703, 2809, 6477, 6731, 8427, 20193, 47753, 114427, 143259, 343281, 356743, 1070229, 6064631, 18193893]

約数ペア:

[(1, 18193893), (3, 6064631), (17, 1070229), (51, 356743), (53, 343281), (127, 143259), (159, 114427), (381, 47753), (901, 20193), (2159, 8427), (2703, 6731), (2809, 6477)]