12321872

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{509}}^1$

素因数の和:623

約数の個数: 40

約数和(自身を含む): 25612200

約数和(自身を除く): 13290328

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 89, 136, 178, 272, 356, 509, 712, 1018, 1424, 1513, 2036, 3026, 4072, 6052, 8144, 8653, 12104, 17306, 24208, 34612, 45301, 69224, 90602, 138448, 181204, 362408, 724816, 770117, 1540234, 3080468, 6160936, 12321872]

約数ペア:

[(1, 12321872), (2, 6160936), (4, 3080468), (8, 1540234), (16, 770117), (17, 724816), (34, 362408), (68, 181204), (89, 138448), (136, 90602), (178, 69224), (272, 45301), (356, 34612), (509, 24208), (712, 17306), (1018, 12104), (1424, 8653), (1513, 8144), (2036, 6052), (3026, 4072)]