18420732

素因数分解:

$2^2\times 3^2\times {\mathrm{11}}^1\times {\mathrm{181}}^1\times {\mathrm{257}}^1$

素因数の和:459

約数の個数: 72

約数和(自身を含む): 51275952

約数和(自身を除く): 32855220

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 18, 22, 33, 36, 44, 66, 99, 132, 181, 198, 257, 362, 396, 514, 543, 724, 771, 1028, 1086, 1542, 1629, 1991, 2172, 2313, 2827, 3084, 3258, 3982, 4626, 5654, 5973, 6516, 7964, 8481, 9252, 11308, 11946, 16962, 17919, 23892, 25443, 33924, 35838, 46517, 50886, 71676, 93034, 101772, 139551, 186068, 279102, 418653, 511687, 558204, 837306, 1023374, 1535061, 1674612, 2046748, 3070122, 4605183, 6140244, 9210366, 18420732]

約数ペア:

[(1, 18420732), (2, 9210366), (3, 6140244), (4, 4605183), (6, 3070122), (9, 2046748), (11, 1674612), (12, 1535061), (18, 1023374), (22, 837306), (33, 558204), (36, 511687), (44, 418653), (66, 279102), (99, 186068), (132, 139551), (181, 101772), (198, 93034), (257, 71676), (362, 50886), (396, 46517), (514, 35838), (543, 33924), (724, 25443), (771, 23892), (1028, 17919), (1086, 16962), (1542, 11946), (1629, 11308), (1991, 9252), (2172, 8481), (2313, 7964), (2827, 6516), (3084, 5973), (3258, 5654), (3982, 4626)]