12990429

素因数分解:

$3^3\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{167}}^1$

素因数の和:286

約数の個数: 32

約数和(自身を含む): 20106240

約数和(自身を除く): 7115811

約数列:

[1, 3, 9, 27, 43, 67, 129, 167, 201, 387, 501, 603, 1161, 1503, 1809, 2881, 4509, 7181, 8643, 11189, 21543, 25929, 33567, 64629, 77787, 100701, 193887, 302103, 481127, 1443381, 4330143, 12990429]

約数ペア:

[(1, 12990429), (3, 4330143), (9, 1443381), (27, 481127), (43, 302103), (67, 193887), (129, 100701), (167, 77787), (201, 64629), (387, 33567), (501, 25929), (603, 21543), (1161, 11189), (1503, 8643), (1809, 7181), (2881, 4509)]