16481721

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{233}}^1$

素因数の和:345

約数の個数: 32

約数和(自身を含む): 24935040

約数和(自身を除く): 8453319

約数列:

[1, 3, 17, 19, 51, 57, 73, 219, 233, 323, 699, 969, 1241, 1387, 3723, 3961, 4161, 4427, 11883, 13281, 17009, 23579, 51027, 70737, 75259, 225777, 289153, 323171, 867459, 969513, 5493907, 16481721]

約数ペア:

[(1, 16481721), (3, 5493907), (17, 969513), (19, 867459), (51, 323171), (57, 289153), (73, 225777), (219, 75259), (233, 70737), (323, 51027), (699, 23579), (969, 17009), (1241, 13281), (1387, 11883), (3723, 4427), (3961, 4161)]