21715638

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{7717}}^1$

素因数の和:7796

約数の個数: 32

約数和(自身を含む): 50383104

約数和(自身を除く): 28667466

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 67, 134, 201, 402, 469, 938, 1407, 2814, 7717, 15434, 23151, 46302, 54019, 108038, 162057, 324114, 517039, 1034078, 1551117, 3102234, 3619273, 7238546, 10857819, 21715638]

約数ペア:

[(1, 21715638), (2, 10857819), (3, 7238546), (6, 3619273), (7, 3102234), (14, 1551117), (21, 1034078), (42, 517039), (67, 324114), (134, 162057), (201, 108038), (402, 54019), (469, 46302), (938, 23151), (1407, 15434), (2814, 7717)]