5181981

素因数分解:

$3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{67}}^1\times {\mathrm{127}}^1$

素因数の和:233

約数の個数: 32

約数和(自身を含む): 8355840

約数和(自身を除く): 3173859

約数列:

[1, 3, 7, 21, 29, 67, 87, 127, 201, 203, 381, 469, 609, 889, 1407, 1943, 2667, 3683, 5829, 8509, 11049, 13601, 25527, 25781, 40803, 59563, 77343, 178689, 246761, 740283, 1727327, 5181981]

約数ペア:

[(1, 5181981), (3, 1727327), (7, 740283), (21, 246761), (29, 178689), (67, 77343), (87, 59563), (127, 40803), (201, 25781), (203, 25527), (381, 13601), (469, 11049), (609, 8509), (889, 5829), (1407, 3683), (1943, 2667)]