20515236

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{283}}^1\times {\mathrm{863}}^1$

素因数の和:1160

約数の個数: 48

約数和(自身を含む): 54964224

約数和(自身を除く): 34448988

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 283, 566, 849, 863, 1132, 1698, 1726, 1981, 2589, 3396, 3452, 3962, 5178, 5943, 6041, 7924, 10356, 11886, 12082, 18123, 23772, 24164, 36246, 72492, 244229, 488458, 732687, 976916, 1465374, 1709603, 2930748, 3419206, 5128809, 6838412, 10257618, 20515236]

約数ペア:

[(1, 20515236), (2, 10257618), (3, 6838412), (4, 5128809), (6, 3419206), (7, 2930748), (12, 1709603), (14, 1465374), (21, 976916), (28, 732687), (42, 488458), (84, 244229), (283, 72492), (566, 36246), (849, 24164), (863, 23772), (1132, 18123), (1698, 12082), (1726, 11886), (1981, 10356), (2589, 7924), (3396, 6041), (3452, 5943), (3962, 5178)]