28693791

素因数分解:

$3^3\times 7^1\times {\mathrm{157}}^1\times {\mathrm{967}}^1$

素因数の和:1140

約数の個数: 32

約数和(自身を含む): 48942080

約数和(自身を除く): 20248289

約数列:

[1, 3, 7, 9, 21, 27, 63, 157, 189, 471, 967, 1099, 1413, 2901, 3297, 4239, 6769, 8703, 9891, 20307, 26109, 29673, 60921, 151819, 182763, 455457, 1062733, 1366371, 3188199, 4099113, 9564597, 28693791]

約数ペア:

[(1, 28693791), (3, 9564597), (7, 4099113), (9, 3188199), (21, 1366371), (27, 1062733), (63, 455457), (157, 182763), (189, 151819), (471, 60921), (967, 29673), (1099, 26109), (1413, 20307), (2901, 9891), (3297, 8703), (4239, 6769)]