20528028003

素因数分解:

$3^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{107}}^1\times {\mathrm{76771}}^1$

素因数の和:76912

約数の個数: 48

約数和(自身を含む): 34027807104

約数和(自身を除く): 13499779101

約数列:

[1, 3, 7, 17, 21, 49, 51, 107, 119, 147, 321, 357, 749, 833, 1819, 2247, 2499, 5243, 5457, 12733, 15729, 38199, 76771, 89131, 230313, 267393, 537397, 1305107, 1612191, 3761779, 3915321, 8214497, 9135749, 11285337, 24643491, 27407247, 57501479, 63950243, 139646449, 172504437, 191850729, 402510353, 418939347, 977525143, 1207531059, 2932575429, 6842676001, 20528028003]

約数ペア:

[(1, 20528028003), (3, 6842676001), (7, 2932575429), (17, 1207531059), (21, 977525143), (49, 418939347), (51, 402510353), (107, 191850729), (119, 172504437), (147, 139646449), (321, 63950243), (357, 57501479), (749, 27407247), (833, 24643491), (1819, 11285337), (2247, 9135749), (2499, 8214497), (5243, 3915321), (5457, 3761779), (12733, 1612191), (15729, 1305107), (38199, 537397), (76771, 267393), (89131, 230313)]