18025623

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^2$

素因数の和:117

約数の個数: 72

約数和(自身を含む): 35118720

約数和(自身を除く): 17093097

約数列:

[1, 3, 7, 9, 11, 19, 21, 33, 37, 57, 63, 77, 99, 111, 133, 171, 209, 231, 259, 333, 399, 407, 627, 693, 703, 777, 1197, 1221, 1369, 1463, 1881, 2109, 2331, 2849, 3663, 4107, 4389, 4921, 6327, 7733, 8547, 9583, 12321, 13167, 14763, 15059, 23199, 25641, 26011, 28749, 44289, 45177, 54131, 69597, 78033, 86247, 105413, 135531, 162393, 182077, 234099, 286121, 316239, 487179, 546231, 858363, 948717, 1638693, 2002847, 2575089, 6008541, 18025623]

約数ペア:

[(1, 18025623), (3, 6008541), (7, 2575089), (9, 2002847), (11, 1638693), (19, 948717), (21, 858363), (33, 546231), (37, 487179), (57, 316239), (63, 286121), (77, 234099), (99, 182077), (111, 162393), (133, 135531), (171, 105413), (209, 86247), (231, 78033), (259, 69597), (333, 54131), (399, 45177), (407, 44289), (627, 28749), (693, 26011), (703, 25641), (777, 23199), (1197, 15059), (1221, 14763), (1369, 13167), (1463, 12321), (1881, 9583), (2109, 8547), (2331, 7733), (2849, 6327), (3663, 4921), (4107, 4389)]