15817971

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{61}}^2\times {\mathrm{109}}^1$

素因数の和:247

約数の個数: 24

約数和(自身を含む): 23303280

約数和(自身を除く): 7485309

約数列:

[1, 3, 13, 39, 61, 109, 183, 327, 793, 1417, 2379, 3721, 4251, 6649, 11163, 19947, 48373, 86437, 145119, 259311, 405589, 1216767, 5272657, 15817971]

約数ペア:

[(1, 15817971), (3, 5272657), (13, 1216767), (39, 405589), (61, 259311), (109, 145119), (183, 86437), (327, 48373), (793, 19947), (1417, 11163), (2379, 6649), (3721, 4251)]