20206823

素因数分解:

$7^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1$

素因数の和:112

約数の個数: 48

約数和(自身を含む): 28108800

約数和(自身を除く): 7901977

約数列:

[1, 7, 13, 19, 29, 31, 91, 133, 169, 203, 217, 247, 377, 403, 551, 589, 899, 1183, 1729, 2639, 2821, 3211, 3857, 4123, 4901, 5239, 6293, 7163, 7657, 11687, 17081, 22477, 34307, 36673, 50141, 53599, 81809, 93119, 99541, 119567, 151931, 222053, 651833, 696787, 1063517, 1554371, 2886689, 20206823]

約数ペア:

[(1, 20206823), (7, 2886689), (13, 1554371), (19, 1063517), (29, 696787), (31, 651833), (91, 222053), (133, 151931), (169, 119567), (203, 99541), (217, 93119), (247, 81809), (377, 53599), (403, 50141), (551, 36673), (589, 34307), (899, 22477), (1183, 17081), (1729, 11687), (2639, 7657), (2821, 7163), (3211, 6293), (3857, 5239), (4123, 4901)]