3998721

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{31}}^2\times {\mathrm{73}}^1$

素因数の和:157

約数の個数: 24

約数和(自身を含む): 5878560

約数和(自身を除く): 1879839

約数列:

[1, 3, 19, 31, 57, 73, 93, 219, 589, 961, 1387, 1767, 2263, 2883, 4161, 6789, 18259, 42997, 54777, 70153, 128991, 210459, 1332907, 3998721]

約数ペア:

[(1, 3998721), (3, 1332907), (19, 210459), (31, 128991), (57, 70153), (73, 54777), (93, 42997), (219, 18259), (589, 6789), (961, 4161), (1387, 2883), (1767, 2263)]