28727139

素因数分解:

$3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{1097}}^1$

素因数の和:1179

約数の個数: 32

約数和(自身を含む): 46379520

約数和(自身を除く): 17652381

約数列:

[1, 3, 7, 21, 29, 43, 87, 129, 203, 301, 609, 903, 1097, 1247, 3291, 3741, 7679, 8729, 23037, 26187, 31813, 47171, 95439, 141513, 222691, 330197, 668073, 990591, 1367959, 4103877, 9575713, 28727139]

約数ペア:

[(1, 28727139), (3, 9575713), (7, 4103877), (21, 1367959), (29, 990591), (43, 668073), (87, 330197), (129, 222691), (203, 141513), (301, 95439), (609, 47171), (903, 31813), (1097, 26187), (1247, 23037), (3291, 8729), (3741, 7679)]