12989655

素因数分解:

$3^2\times 5^1\times 7^2\times {\mathrm{43}}^1\times {\mathrm{137}}^1$

素因数の和:205

約数の個数: 72

約数和(自身を含む): 26996112

約数和(自身を除く): 14006457

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 43, 45, 49, 63, 105, 129, 137, 147, 215, 245, 301, 315, 387, 411, 441, 645, 685, 735, 903, 959, 1233, 1505, 1935, 2055, 2107, 2205, 2709, 2877, 4515, 4795, 5891, 6165, 6321, 6713, 8631, 10535, 13545, 14385, 17673, 18963, 20139, 29455, 31605, 33565, 41237, 43155, 53019, 60417, 88365, 94815, 100695, 123711, 206185, 265095, 288659, 302085, 371133, 618555, 865977, 1443295, 1855665, 2597931, 4329885, 12989655]

約数ペア:

[(1, 12989655), (3, 4329885), (5, 2597931), (7, 1855665), (9, 1443295), (15, 865977), (21, 618555), (35, 371133), (43, 302085), (45, 288659), (49, 265095), (63, 206185), (105, 123711), (129, 100695), (137, 94815), (147, 88365), (215, 60417), (245, 53019), (301, 43155), (315, 41237), (387, 33565), (411, 31605), (441, 29455), (645, 20139), (685, 18963), (735, 17673), (903, 14385), (959, 13545), (1233, 10535), (1505, 8631), (1935, 6713), (2055, 6321), (2107, 6165), (2205, 5891), (2709, 4795), (2877, 4515)]