19396503

素因数分解:

$3^7\times 7^2\times {\mathrm{181}}^1$

素因数の和:216

約数の個数: 48

約数和(自身を含む): 34026720

約数和(自身を除く): 14630217

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 81, 147, 181, 189, 243, 441, 543, 567, 729, 1267, 1323, 1629, 1701, 2187, 3801, 3969, 4887, 5103, 8869, 11403, 11907, 14661, 15309, 26607, 34209, 35721, 43983, 79821, 102627, 107163, 131949, 239463, 307881, 395847, 718389, 923643, 2155167, 2770929, 6465501, 19396503]

約数ペア:

[(1, 19396503), (3, 6465501), (7, 2770929), (9, 2155167), (21, 923643), (27, 718389), (49, 395847), (63, 307881), (81, 239463), (147, 131949), (181, 107163), (189, 102627), (243, 79821), (441, 43983), (543, 35721), (567, 34209), (729, 26607), (1267, 15309), (1323, 14661), (1629, 11907), (1701, 11403), (2187, 8869), (3801, 5103), (3969, 4887)]