20268654

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{71}}^1\times {\mathrm{971}}^1$

素因数の和:1061

約数の個数: 48

約数和(自身を含む): 47869056

約数和(自身を除く): 27600402

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 49, 71, 98, 142, 147, 213, 294, 426, 497, 971, 994, 1491, 1942, 2913, 2982, 3479, 5826, 6797, 6958, 10437, 13594, 20391, 20874, 40782, 47579, 68941, 95158, 137882, 142737, 206823, 285474, 413646, 482587, 965174, 1447761, 2895522, 3378109, 6756218, 10134327, 20268654]

約数ペア:

[(1, 20268654), (2, 10134327), (3, 6756218), (6, 3378109), (7, 2895522), (14, 1447761), (21, 965174), (42, 482587), (49, 413646), (71, 285474), (98, 206823), (142, 142737), (147, 137882), (213, 95158), (294, 68941), (426, 47579), (497, 40782), (971, 20874), (994, 20391), (1491, 13594), (1942, 10437), (2913, 6958), (2982, 6797), (3479, 5826)]