280804827

素因数分解:

$3^1\times {\mathrm{17}}^2\times {\mathrm{163}}^1\times {\mathrm{1987}}^1$

素因数の和:2187

約数の個数: 24

約数和(自身を含む): 400367296

約数和(自身を除く): 119562469

約数列:

[1, 3, 17, 51, 163, 289, 489, 867, 1987, 2771, 5961, 8313, 33779, 47107, 101337, 141321, 323881, 574243, 971643, 1722729, 5505977, 16517931, 93601609, 280804827]

約数ペア:

[(1, 280804827), (3, 93601609), (17, 16517931), (51, 5505977), (163, 1722729), (289, 971643), (489, 574243), (867, 323881), (1987, 141321), (2771, 101337), (5961, 47107), (8313, 33779)]