20543138

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{67}}^1\times {\mathrm{181}}^1$

素因数の和:279

約数の個数: 48

約数和(自身を含む): 39504192

約数和(自身を除く): 18961054

約数列:

[1, 2, 7, 11, 14, 22, 67, 77, 121, 134, 154, 181, 242, 362, 469, 737, 847, 938, 1267, 1474, 1694, 1991, 2534, 3982, 5159, 8107, 10318, 12127, 13937, 16214, 21901, 24254, 27874, 43802, 56749, 84889, 113498, 133397, 153307, 169778, 266794, 306614, 933779, 1467367, 1867558, 2934734, 10271569, 20543138]

約数ペア:

[(1, 20543138), (2, 10271569), (7, 2934734), (11, 1867558), (14, 1467367), (22, 933779), (67, 306614), (77, 266794), (121, 169778), (134, 153307), (154, 133397), (181, 113498), (242, 84889), (362, 56749), (469, 43802), (737, 27874), (847, 24254), (938, 21901), (1267, 16214), (1474, 13937), (1694, 12127), (1991, 10318), (2534, 8107), (3982, 5159)]