28298013

素因数分解:

$3^1\times {\mathrm{17}}^2\times {\mathrm{127}}^1\times {\mathrm{257}}^1$

素因数の和:421

約数の個数: 24

約数和(自身を含む): 40553472

約数和(自身を除く): 12255459

約数列:

[1, 3, 17, 51, 127, 257, 289, 381, 771, 867, 2159, 4369, 6477, 13107, 32639, 36703, 74273, 97917, 110109, 222819, 554863, 1664589, 9432671, 28298013]

約数ペア:

[(1, 28298013), (3, 9432671), (17, 1664589), (51, 554863), (127, 222819), (257, 110109), (289, 97917), (381, 74273), (771, 36703), (867, 32639), (2159, 13107), (4369, 6477)]