30911991

素因数分解:

$3^1\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{67}}^1$

素因数の和:164

約数の個数: 48

約数和(自身を含む): 48620544

約数和(自身を除く): 17708553

約数列:

[1, 3, 11, 31, 33, 41, 67, 93, 121, 123, 201, 341, 363, 451, 737, 1023, 1271, 1353, 2077, 2211, 2747, 3751, 3813, 4961, 6231, 8107, 8241, 11253, 13981, 14883, 22847, 24321, 30217, 41943, 68541, 85157, 90651, 153791, 251317, 255471, 332387, 461373, 753951, 936727, 997161, 2810181, 10303997, 30911991]

約数ペア:

[(1, 30911991), (3, 10303997), (11, 2810181), (31, 997161), (33, 936727), (41, 753951), (67, 461373), (93, 332387), (121, 255471), (123, 251317), (201, 153791), (341, 90651), (363, 85157), (451, 68541), (737, 41943), (1023, 30217), (1271, 24321), (1353, 22847), (2077, 14883), (2211, 13981), (2747, 11253), (3751, 8241), (3813, 8107), (4961, 6231)]