12990537

素因数分解:

$3^5\times 7^2\times {\mathrm{1091}}^1$

素因数の和:1120

約数の個数: 36

約数和(自身を含む): 22656816

約数和(自身を除く): 9666279

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 81, 147, 189, 243, 441, 567, 1091, 1323, 1701, 3273, 3969, 7637, 9819, 11907, 22911, 29457, 53459, 68733, 88371, 160377, 206199, 265113, 481131, 618597, 1443393, 1855791, 4330179, 12990537]

約数ペア:

[(1, 12990537), (3, 4330179), (7, 1855791), (9, 1443393), (21, 618597), (27, 481131), (49, 265113), (63, 206199), (81, 160377), (147, 88371), (189, 68733), (243, 53459), (441, 29457), (567, 22911), (1091, 11907), (1323, 9819), (1701, 7637), (3273, 3969)]