18442179

素因数分解:

$3^2\times 7^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1$

素因数の和:141

約数の個数: 72

約数和(自身を含む): 34145280

約数和(自身を除く): 15703101

約数列:

[1, 3, 7, 9, 19, 21, 31, 49, 57, 63, 71, 93, 133, 147, 171, 213, 217, 279, 399, 441, 497, 589, 639, 651, 931, 1197, 1349, 1491, 1519, 1767, 1953, 2201, 2793, 3479, 4047, 4123, 4473, 4557, 5301, 6603, 8379, 9443, 10437, 12141, 12369, 13671, 15407, 19809, 28329, 28861, 31311, 37107, 41819, 46221, 66101, 84987, 86583, 107849, 125457, 138663, 198303, 259749, 292733, 323547, 376371, 594909, 878199, 970641, 2049131, 2634597, 6147393, 18442179]

約数ペア:

[(1, 18442179), (3, 6147393), (7, 2634597), (9, 2049131), (19, 970641), (21, 878199), (31, 594909), (49, 376371), (57, 323547), (63, 292733), (71, 259749), (93, 198303), (133, 138663), (147, 125457), (171, 107849), (213, 86583), (217, 84987), (279, 66101), (399, 46221), (441, 41819), (497, 37107), (589, 31311), (639, 28861), (651, 28329), (931, 19809), (1197, 15407), (1349, 13671), (1491, 12369), (1519, 12141), (1767, 10437), (1953, 9443), (2201, 8379), (2793, 6603), (3479, 5301), (4047, 4557), (4123, 4473)]