18007353

素因数分解:

$3^4\times 7^2\times {\mathrm{13}}^1\times {\mathrm{349}}^1$

素因数の和:388

約数の個数: 60

約数和(自身を含む): 33795300

約数和(自身を除く): 15787947

約数列:

[1, 3, 7, 9, 13, 21, 27, 39, 49, 63, 81, 91, 117, 147, 189, 273, 349, 351, 441, 567, 637, 819, 1047, 1053, 1323, 1911, 2443, 2457, 3141, 3969, 4537, 5733, 7329, 7371, 9423, 13611, 17101, 17199, 21987, 28269, 31759, 40833, 51303, 51597, 65961, 95277, 122499, 153909, 197883, 222313, 285831, 367497, 461727, 666939, 857493, 1385181, 2000817, 2572479, 6002451, 18007353]

約数ペア:

[(1, 18007353), (3, 6002451), (7, 2572479), (9, 2000817), (13, 1385181), (21, 857493), (27, 666939), (39, 461727), (49, 367497), (63, 285831), (81, 222313), (91, 197883), (117, 153909), (147, 122499), (189, 95277), (273, 65961), (349, 51597), (351, 51303), (441, 40833), (567, 31759), (637, 28269), (819, 21987), (1047, 17199), (1053, 17101), (1323, 13611), (1911, 9423), (2443, 7371), (2457, 7329), (3141, 5733), (3969, 4537)]