20785713

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{107}}^1\times {\mathrm{293}}^1$

素因数の和:433

約数の個数: 32

約数和(自身を含む): 32006016

約数和(自身を除く): 11220303

約数列:

[1, 3, 13, 17, 39, 51, 107, 221, 293, 321, 663, 879, 1391, 1819, 3809, 4173, 4981, 5457, 11427, 14943, 23647, 31351, 64753, 70941, 94053, 194259, 407563, 532967, 1222689, 1598901, 6928571, 20785713]

約数ペア:

[(1, 20785713), (3, 6928571), (13, 1598901), (17, 1222689), (39, 532967), (51, 407563), (107, 194259), (221, 94053), (293, 70941), (321, 64753), (663, 31351), (879, 23647), (1391, 14943), (1819, 11427), (3809, 5457), (4173, 4981)]