16109821

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{179}}^1$

素因数の和:265

約数の個数: 32

約数和(自身を含む): 21288960

約数和(自身を除く): 5179139

約数列:

[1, 7, 13, 23, 43, 91, 161, 179, 299, 301, 559, 989, 1253, 2093, 2327, 3913, 4117, 6923, 7697, 12857, 16289, 28819, 53521, 53879, 89999, 100061, 177031, 374647, 700427, 1239217, 2301403, 16109821]

約数ペア:

[(1, 16109821), (7, 2301403), (13, 1239217), (23, 700427), (43, 374647), (91, 177031), (161, 100061), (179, 89999), (299, 53879), (301, 53521), (559, 28819), (989, 16289), (1253, 12857), (2093, 7697), (2327, 6923), (3913, 4117)]