28947919

素因数分解:

$7^1\times {\mathrm{11}}^3\times {\mathrm{13}}^1\times {\mathrm{239}}^1$

素因数の和:292

約数の個数: 32

約数和(自身を含む): 39352320

約数和(自身を除く): 10404401

約数列:

[1, 7, 11, 13, 77, 91, 121, 143, 239, 847, 1001, 1331, 1573, 1673, 2629, 3107, 9317, 11011, 17303, 18403, 21749, 28919, 34177, 121121, 202433, 239239, 318109, 375947, 2226763, 2631629, 4135417, 28947919]

約数ペア:

[(1, 28947919), (7, 4135417), (11, 2631629), (13, 2226763), (77, 375947), (91, 318109), (121, 239239), (143, 202433), (239, 121121), (847, 34177), (1001, 28919), (1331, 21749), (1573, 18403), (1673, 17303), (2629, 11011), (3107, 9317)]