398339921

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{107}}^1\times {\mathrm{1217}}^1$

素因数の和:1373

約数の個数: 32

約数和(自身を含む): 505128960

約数和(自身を除く): 106789039

約数列:

[1, 7, 19, 23, 107, 133, 161, 437, 749, 1217, 2033, 2461, 3059, 8519, 14231, 17227, 23123, 27991, 46759, 130219, 161861, 195937, 327313, 531829, 911533, 2474161, 2995037, 3722803, 17319127, 20965259, 56905703, 398339921]

約数ペア:

[(1, 398339921), (7, 56905703), (19, 20965259), (23, 17319127), (107, 3722803), (133, 2995037), (161, 2474161), (437, 911533), (749, 531829), (1217, 327313), (2033, 195937), (2461, 161861), (3059, 130219), (8519, 46759), (14231, 27991), (17227, 23123)]