16127181

素因数分解:

$3^5\times 7^1\times {\mathrm{19}}^1\times {\mathrm{499}}^1$

素因数の和:540

約数の個数: 48

約数和(自身を含む): 29120000

約数和(自身を除く): 12992819

約数列:

[1, 3, 7, 9, 19, 21, 27, 57, 63, 81, 133, 171, 189, 243, 399, 499, 513, 567, 1197, 1497, 1539, 1701, 3493, 3591, 4491, 4617, 9481, 10479, 10773, 13473, 28443, 31437, 32319, 40419, 66367, 85329, 94311, 121257, 199101, 255987, 282933, 597303, 767961, 848799, 1791909, 2303883, 5375727, 16127181]

約数ペア:

[(1, 16127181), (3, 5375727), (7, 2303883), (9, 1791909), (19, 848799), (21, 767961), (27, 597303), (57, 282933), (63, 255987), (81, 199101), (133, 121257), (171, 94311), (189, 85329), (243, 66367), (399, 40419), (499, 32319), (513, 31437), (567, 28443), (1197, 13473), (1497, 10773), (1539, 10479), (1701, 9481), (3493, 4617), (3591, 4491)]