28781703

素因数分解:

$3^3\times {\mathrm{53}}^1\times {\mathrm{20113}}^1$

素因数の和:20175

約数の個数: 16

約数和(自身を含む): 43446240

約数和(自身を除く): 14664537

約数列:

[1, 3, 9, 27, 53, 159, 477, 1431, 20113, 60339, 181017, 543051, 1065989, 3197967, 9593901, 28781703]

約数ペア:

[(1, 28781703), (3, 9593901), (9, 3197967), (27, 1065989), (53, 543051), (159, 181017), (477, 60339), (1431, 20113)]